SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, DC 20549

                                 SCHEDULE 13D
                                (Rule 13d-101)

          INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO
          13d-1(a) AND AMENDMENTS THERETO FILED PURSUANT TO 13d-2(a)

                               (Amendment No. 8)


                         CAPSTEAD MORTGAGE CORPORATION
            -------------------------------------------------------
                               (Name of Issuer)


                    COMMON STOCK, PAR VALUE $0.01 PER SHARE
          -----------------------------------------------------------
                        (Title of Class of Securities)


                                  14067E 40 7
       ----------------------------------------------------------------
                                (CUSIP Number)


                               Randal A. Nardone
                     Chief Operating Officer and Secretary
                     Fortress Registered Investment Trust
                        sole member of Fortress CAP LLC
                          1251 Avenue of the Americas
                           New York, New York 10020
                                (212) 798-6100
       -----------------------------------------------------------------
                 (Name, Address and Telephone Number of Person
               Authorized to Receive Notices and Communications)


                                   Copy to:

                               J. Gregory Milmoe
                   Skadden, Arps, Slate, Meagher & Flom LLP
                               Four Times Square
                         New York, New York 10036-6522
                                (212) 735-3000

                                March 19, 2003
       -----------------------------------------------------------------
            (Date of Event Which Requires Filing of This Statement)


         If the filing person has previously filed a statement on Schedule 13G
to report the acquisition which is the subject of this Schedule 13D, and is
filing this schedule because of Rule 13d-1(e), 13d(f) or 13d-1(g), check the
following box |_|.



                             (Page 1 of 13 Pages)


  CUSIP No. 14067E 40 7            13D                     Page 2 of 13 Pages
-------------------------------------------------------------------------------
1          NAMES OF REPORTING PERSONS
           I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
           Fortress CAP LLC
-------------------------------------------------------------------------------
2          CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP   (a) |_|
           Not applicable                                     (b) |_|
-------------------------------------------------------------------------------
3          SEC USE ONLY
-------------------------------------------------------------------------------
4          SOURCE OF FUNDS
           Not applicable
-------------------------------------------------------------------------------
5          CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
           PURSUANT TO ITEM 2(d) or 2(e)                           |_|
-------------------------------------------------------------------------------
6          CITIZENSHIP OR PLACE OF ORGANIZATION
           Delaware
-------------------------------------------------------------------------------
  NUMBER OF SHARES           7     SOLE VOTING POWER           - 0 -
BENEFICIALLY OWNED           --------------------------------------------------
     BY EACH
REPORTING PERSON             8     SHARED VOTING POWER         - 3,208,259 -
     WITH                    --------------------------------------------------

                             9     SOLE DISPOSITIVE POWER      - 0 -
                             --------------------------------------------------

                             10    SHARED DISPOSITIVE POWER    - 3,208,259 -
-------------------------------------------------------------------------------

11         AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
           - 3,208,259 -
-------------------------------------------------------------------------------
12         CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES
                                                               |_|
-------------------------------------------------------------------------------
13         PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
           23.0% (based on 13,965,489 shares of Common Stock outstanding as of
           February 20, 2003)
-------------------------------------------------------------------------------
14         TYPE OF REPORTING PERSON
           CO
-------------------------------------------------------------------------------



CUSIP No. 14067E 40 7                13D                   Page 3 of 13 Pages

-------------------------------------------------------------------------------
1          NAMES OF REPORTING PERSONS
           I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
           Fortress Registered Investment Trust
-------------------------------------------------------------------------------
2          CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP   (a) |_|
           Not applicable                                     (b) |_|
-------------------------------------------------------------------------------
3          SEC USE ONLY
-------------------------------------------------------------------------------
4          SOURCE OF FUNDS
           WC
-------------------------------------------------------------------------------
5          CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT
           TO ITEM 2(d) or 2(e)
                                                               |_|
-------------------------------------------------------------------------------
6          CITIZENSHIP OR PLACE OF ORGANIZATION
           Delaware
-------------------------------------------------------------------------------
      NUMBER OF                7       SOLE VOTING POWER         - 0 -
         SHARES                ------------------------------------------------
   BENEFICIALLY                8       SHARED VOTING POWER       - 3,208,259 -
      OWNED BY
           EACH                ------------------------------------------------
      REPORTING                9       SOLE DISPOSITIVE POWER    - 0 -
    PERSON WITH                ------------------------------------------------
                               10      SHARED DISPOSITIVE POWER  - 3,208,259 -
-------------------------------------------------------------------------------
11         AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
           - 3,208,259 -
-------------------------------------------------------------------------------
12         CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES
                                                          |_|
-------------------------------------------------------------------------------
13         PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
           23.0% (based on 13,965,489 shares of Common Stock outstanding as of
           February 20, 2003)
-------------------------------------------------------------------------------
14         TYPE OF REPORTING PERSON
           CO
-------------------------------------------------------------------------------




CUSIP No. 14067E 40 7                 13D                  Page 4 of 13 Pages
-------------------------------------------------------------------------------
1          NAMES OF REPORTING PERSONS
           I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
           Fortress Investment Fund LLC
-------------------------------------------------------------------------------
2          CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP          (a)  |_|
           Not applicable                                            (b)  |_|
-------------------------------------------------------------------------------
3          SEC USE ONLY
-------------------------------------------------------------------------------
4          SOURCE OF FUNDS
           Not applicable
-------------------------------------------------------------------------------
5          CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT
           TO ITEM 2(d) or 2(e)                                    |_|
-------------------------------------------------------------------------------
6          CITIZENSHIP OR PLACE OF ORGANIZATION
           Delaware
-------------------------------------------------------------------------------
      NUMBER OF                7       SOLE VOTING POWER         - 0 -
        SHARES
   BENEFICIALLY                ------------------------------------------------
      OWNED BY                 8       SHARED VOTING POWER       - 3,208,259 -
          EACH
      REPORTING                ------------------------------------------------
    PERSON WITH                9       SOLE DISPOSITIVE POWER    - 0 -

                               ------------------------------------------------
                               10      SHARED DISPOSITIVE POWER  - 3,208,259 -

-------------------------------------------------------------------------------
11         AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
           - 3,208,259 -
-------------------------------------------------------------------------------
12         CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
           SHARES                                                 |_|
-------------------------------------------------------------------------------
13         PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
           23.0% (based on 13,965,489 shares of Common Stock outstanding as of
           February 20, 2003)
-------------------------------------------------------------------------------
14         TYPE OF REPORTING PERSON
           CO
-------------------------------------------------------------------------------



CUSIP No. 14067E 40 7              13D                     Page 5 of 13 Pages
-------------------------------------------------------------------------------
1          NAMES OF REPORTING PERSONS
           I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
           Fortress Investment Group LLC
-------------------------------------------------------------------------------
2          CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP   (a)  |_|
           Not applicable                                     (b)  |_|
-------------------------------------------------------------------------------
3          SEC USE ONLY
-------------------------------------------------------------------------------
4          SOURCE OF FUNDS
           Not applicable
-------------------------------------------------------------------------------
5          CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT
           TO ITEM 2(d) or 2(e)                                  |_|
-------------------------------------------------------------------------------
6          CITIZENSHIP OR PLACE OF ORGANIZATION
           Delaware
-------------------------------------------------------------------------------
      NUMBER OF                7       SOLE VOTING POWER        - 0 -
         SHARES
   BENEFICIALLY                ------------------------------------------------
      OWNED BY                 8       SHARED VOTING POWER      - 3,208,259 -
           EACH
       REPORTING               ------------------------------------------------
    PERSON WITH                9       SOLE DISPOSITIVE POWER   - 0 -

                               ------------------------------------------------
                               10      SHARED DISPOSITIVE POWER - 3,208,259 -
-------------------------------------------------------------------------------
11         AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
           - 3,208,259 -
-------------------------------------------------------------------------------
12         CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
           SHARES                                                 |_|
-------------------------------------------------------------------------------
13         PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
           23.0% (based on 13,965,489 shares of Common Stock outstanding as of
           February 20, 2003)
-------------------------------------------------------------------------------
14         TYPE OF REPORTING PERSON
           CO
-------------------------------------------------------------------------------



CUSIP No. 14067E 40 7                13D                 Page 6 of 13 Pages
-------------------------------------------------------------------------------
1          NAMES OF REPORTING PERSONS
           I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY)
           Fortress Principal Investment Holdings LLC
-------------------------------------------------------------------------------
2          CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP   (a)  |_|
           Not applicable                                     (b)  |_|
-------------------------------------------------------------------------------
3          SEC USE ONLY
-------------------------------------------------------------------------------
4          SOURCE OF FUNDS
           Not applicable
-------------------------------------------------------------------------------
5          CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT
           TO ITEM 2(d) or 2(e)                                   |_|
-------------------------------------------------------------------------------
6          CITIZENSHIP OR PLACE OF ORGANIZATION
           Delaware
-------------------------------------------------------------------------------
      NUMBER OF                7       SOLE VOTING POWER         - 0 -
        SHARES
   BENEFICIALLY                ------------------------------------------------
      OWNED BY                 8       SHARED VOTING POWER       - 3,208,259 -
           EACH
      REPORTING                ------------------------------------------------
    PERSON WITH                9       SOLE DISPOSITIVE POWER    - 0 -

                               ------------------------------------------------
                               10      SHARED DISPOSITIVE POWER  - 3,208,259 -
-------------------------------------------------------------------------------
11         AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
           - 3,208,259 -
-------------------------------------------------------------------------------
12         CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
           SHARES                                               |_|
-------------------------------------------------------------------------------
13         PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
           23.0% (based on 13,965,489 shares of Common Stock outstanding as of
           February 20, 2003)
-------------------------------------------------------------------------------
14         TYPE OF REPORTING PERSON
           CO
-------------------------------------------------------------------------------



         This Amendment No. 8 (this "Amendment") to the Statement on Schedule
13D dated January 21, 2000, as amended by Amendment No. 1 thereto dated
February 22, 2000, Amendment No. 2 thereto dated July 12, 2000, Amendment No.
3 thereto dated September 8, 2000, Amendment No. 4 thereto dated October 31,
2000, Amendment No. 5 thereto dated December 28, 2000, Amendment No. 6 thereto
dated November 29, 2001 and Amendment No. 7 thereto dated February 28, 2003
(as so amended, the "Schedule 13D") filed by Fortress CAP LLC, a Delaware
limited liability company ("Fortress CAP"), Fortress Registered Investment
Trust, a Delaware business trust ("Fortress Trust"), Fortress Investment Fund
LLC, a Delaware limited liability company ("Fortress Fund"), Fortress
Investment Group LLC, a Delaware limited liability company ("Fortress Group"),
and Fortress Principal Investment Holdings LLC, a Delaware limited liability
company ("FPIH"), relates to the common stock, par value $0.01 per share (the
"Common Stock"), of Capstead Mortgage Corporation, a Maryland corporation
("Capstead"). This Amendment is filed jointly by Fortress CAP, Fortress Trust,
Fortress Fund, Fortress Group and FPIH (collectively, the "Reporting
Persons"). All capitalized terms used but not defined herein have the meanings
ascribed to them in the Schedule 13D.

Item 4.

         Item 4 of the Schedule 13D is hereby amended and supplemented to add
the following:

               On March 4, 2003, Fortress CAP sold 65,000 shares of Common
         Stock at $12.5015 per share, yielding aggregate net proceeds of
         $812,597.50. On March 5, 2003, Fortress CAP sold 8,900 shares of
         Common Stock at $12.5118 per share, yielding aggregate net proceeds
         of $111,355.02. On March 18, 2003, Fortress CAP sold 1,000 shares of
         Common Stock at $13.19 per share, yielding aggregate net proceeds of
         $13,190.00. On March 19, 2003, Fortress CAP sold 66,200 shares of
         Common Stock at $13.0342 per share, yielding aggregate net proceeds
         of $862,864.04. Each of these sales was a privately negotiated block
         transaction. After such sales, Fortress CAP was the direct beneficial
         owner of 3,208,259 shares of Common Stock, which represents
         approximately 23.0% of the outstanding Common Stock. The Reporting
         Persons acquired beneficial ownership of the Capstead securities
         referenced in this Schedule 13D for investment purposes and for
         purposes of influencing the business and affairs of Capstead. The
         Reporting Persons intend to continuously review their investment in
         Capstead, and may in the future determine to (i) dispose of all or a
         portion of the securities of Capstead owned by them, (ii) acquire
         additional securities of Capstead, through open market purchases,
         private agreements or otherwise, (iii) take any other available
         course of action, which could involve one or more of the types of
         transactions or have one or more of the results described in the last
         paragraph of this Item 4 or (iv) otherwise change their investment
         intent.



               The Reporting Persons expect to make additional dispositions of
         Common Stock from time to time, in light of their investment
         goals, subject to market conditions. Notwithstanding anything
         contained herein to the contrary, the Reporting Persons specifically
         reserve the right to change their intentions with respect to any or
         all of such matters. In reaching any decision as to their course of
         action (as well as to the specific elements thereof), the Reporting
         Persons currently expect that they would take into consideration a
         variety of factors, including, but not limited to, Capstead's
         financial condition, business, operations and prospects, other
         developments concerning Capstead and the mortgage business generally,
         other business opportunities available to the Reporting Persons,
         other developments with respect to the business of the Reporting
         Persons, general economic conditions and money and stock market
         conditions, including the market price of the securities of Capstead.

               Other than as described herein, none of the Reporting Persons
         has any present plans or proposals which relate to or would result
         in: (a) the acquisition by any person of additional securities of
         Capstead or the disposition of securities of Capstead; (b) an
         extraordinary corporate transaction, such as a merger, reorganization
         or liquidation, involving Capstead or any of its subsidiaries; (c) a
         sale or transfer of a material amount of assets of Capstead or any of
         its subsidiaries; (d) any change in the Board of Directors or
         management of Capstead, including any plans or proposals to change
         the number or terms of directors or to fill any existing vacancies on
         the Board of Directors of Capstead; (e) any material change in the
         present capitalization or dividend policy of Capstead; (f) any other
         material change in Capstead's business or corporate structure; (g)
         changes in Capstead's articles of incorporation, by-laws or
         instruments corresponding thereto or other actions which may impede
         the acquisition of control of Capstead by any person; (h) a class of
         securities of Capstead being delisted from a national securities
         exchange or ceasing to be authorized to be quoted in an inter-dealer
         quotation system of a registered national securities association; (i)
         a class of equity securities of Capstead becoming eligible for
         termination of registration pursuant to Section 12(g)(4) of the
         Securities Exchange Act of 1934, as amended; or (j) any action
         similar to those enumerated above.

Item 5.

         Item 5 of the Schedule 13D is hereby amended and supplemented to add
the following:

               As a result of the March 4, 2003 sale of 65,000 shares of
         Common Stock, the March 5, 2003 sale of 8,900 shares of Common Stock,
         the March 18 sale of 1,000 shares of Common Stock and the March 19,
         2003 sale of 66,200 shares of Common Stock by the Reporting Persons
         in privately negotiated block sales as described above, Fortress CAP
         is now the direct beneficial owner of 3,208,259 shares of Common Stock.



                                   SIGNATURE


         After reasonable inquiry and to the best of my knowledge and belief,
I certify that the information set forth in this statement is true, complete
and correct.


                                  March 20, 2003


                                  FORTRESS CAP LLC


                                  By: /s/ Randal A. Nardone
                                    ------------------------------
                                    Randal A. Nardone, as
                                    Chief Operating Officer and Secretary of
                                    Fortress Registered Investment Trust,
                                    sole member of Fortress CAP LLC




                                   SIGNATURE


         After reasonable inquiry and to the best of my knowledge and belief,
I certify that the information set forth in this statement is true, complete
and correct.


                                         March 20, 2003


                                         FORTRESS REGISTERED
                                         INVESTMENT TRUST


                                         By:/s/ Randal A. Nardone
                                            -----------------------------------
                                            Randal A. Nardone, as
                                            Chief Operating Officer and
                                            Secretary of Fortress Registered
                                            Investment Trust




                                   SIGNATURE


         After reasonable inquiry and to the best of my knowledge and belief,
I certify that the information set forth in this statement is true, complete
and correct.


                                       March 20, 2003



                                       FORTRESS INVESTMENT FUND LLC


                                       By: /s/ Randal A. Nardone
                                           ------------------------------------
                                           Randal A. Nardone, as
                                           Chief Operating Officer and Secretary
                                           of Fortress Fund MM LLC,
                                           managing member of
                                           Fortress Investment Fund LLC




                                   SIGNATURE


         After reasonable inquiry and to the best of my knowledge and belief,
I certify that the information set forth in this statement is true, complete
and correct.


                                        March 20, 2003


                                        FORTRESS  INVESTMENT GROUP  LLC


                                        By:  /s/ Randal A. Nardone
                                            ---------------------------------
                                            Randal A. Nardone, as
                                            Chief Operating Officer and
                                            Secretary of Fortress Investment
                                            Group LLC




                                   SIGNATURE


         After reasonable inquiry and to the best of my knowledge and belief,
I certify that the information set forth in this statement is true, complete
and correct.


                                     March 20, 2003


                                     FORTRESS PRINCIPAL
                                     INVESTMENT HOLDINGS  LLC


                                     By: /s/ Randal A. Nardone
                                        ------------------------------
                                        Randal A. Nardone, as
                                        Secretary