1)

Name of reporting person(s):

Frank B. Silvestro

  2)

Check the appropriate box if a member of a group:

Not Applicable

  3)

Securities and Exchange Commission use only:

  4)

Citizenship or place of organization:

United States

  5)

Sole voting power

Class A (1)

Class B (2)

276,937

276,937

  6)

Shared voting power

Class A

Class B

-0-

-0-

  7)

Sole dispositive power

Class A

Class B

-0-

-0-

  8)

Shared dispositive power (3)

Class A (1)

Class B (2)

276,937

276,937

(1)    Class B Stock is convertible into Class A stock on a one for one basis.

(3)    Messrs. Gerhard J. Neumaier, Frank B. Silvestro, Ronald L. Frank and Gerald A. Strobel entered into a
Stockholders' Agreement in 1970 which governs the sale of an aggregate of 1,176,068 shares of Class B
Common Stock owned by them, certain members of their families, and a former spouse.  The Agreement
provides that prior to accepting a bona fide offer to purchase all or any part of those shares, each party must
first allow the other members of the agreement the opportunity to acquire on a pro rata basis, with right of
over-allotment, all of such shares covered by the offer on the same terms and conditions proposed by the offer.

  9)

Aggregate amount beneficially owned by reporting person:        

Class A

Class B

276,937

276,937

10) 

Check box if the aggregate amount in Row 9 excludes certain shares

[  ]

11)  

Percent of class represented by amount in Row 9:

Class A
Common Stock

Class B
Common Stock

10.2%

16.9%

12)  

Type of Reporting Person:

Individual

Item 1(a):     

Name of issuer:

Ecology and Environment, Inc.

Item 1(b):

Address of issuer's principal executive offices:

368 Pleasant View Drive, Lancaster, New York 14086

Item 2(a):

Name of person filing:

Frank B. Silvestro

Item 2(b):

Address of principal business office:

368 Pleasant View Drive, Lancaster, New York 14086

Item 2(c):

Citizenship:

United States

Item 2(d):

Title of class of securities:

Class A Common Stock (Class B Common Stock is
convertible into Class A Stock on a one for one basis.)

Item 2(e):

CUSIP number:

278878 10 3

Item 3:

Not Applicable

Item 4(a):

Amount beneficially owned: (1)(2)(3)(4)(5)(6):

Class A

Class B

276,937

276,937

Item 4(b):

Percent of class:

Class A

Class B

10.2%

16.9%

Item 4(c)(i):

Sole power to vote or to direct the vote:

Class A

Class B

276,937

276,937

Item 4(c)(ii):

Shared power to vote or to direct the vote:

Class A

Class B

-0-

-0-

Item 4(c)(iii):

Sole power to dispose or to direct the disposition of:

Class A

Class B

-0-

-0-

Item 4(c)(iv):

Shared power to dispose or to direct the disposition of:

Class A

Class B

276,937

276,937

(1)    Class B Stock is convertible into Class A Stock on a one for one basis.

(2)    The Filing Person is deemed to be the beneficial owner of securities that may be acquired within
60 days through the exercise of exchange or conversion rights.  The shares of Class A Common Stock
issuable upon conversion by any such shareholder are not included in calculating the number of shares or
percentage of Class A Common Stock beneficially owned by any other shareholder.  Moreover, the table
does not give effect to any shares of Class A Common Stock that may be issued pursuant to the Company's
Incentive Stock Option Plan, none of which have been granted to the Filing Person.

(3)    Does not include 71,107 shares (35,650 shares of Class A Common Stock and 35,457 shares of Class B
Common Stock) owned by the Company's Defined Contribution Plan of which Messrs. Gerhard J. Neumaier,
Frank B. Silvestro, Ronald L. Frank, and Gerald A. Strobel constitute four of five Trustees.

(4)    Messrs. Gerhard J. Neumaier, Frank B. Silvestro, Ronald L. Frank and Gerald A. Strobel entered into a
Stockholders' Agreement in 1970 which governs the sale of an aggregate of 1,176,068 shares of Class B
Common Stock owned by them, certain members of their families and a former spouse.  The Agreement
provides that prior to accepting a bona fide offer to purchase all or any part of those shares, each party must
first allow the other members to the agreement the opportunity to acquire on a pro rata basis, with right of
over-allotment, all of such shares covered by the offer on the same terms and conditions proposed by the
offer.

(5)    There are 2,435,435 shares of Class A Common Stock outstanding and 1,643,045 shares of Class B
Common Stock outstanding as of December 31, 2004.

Item 5:

Ownership of five percent or less of a class:

Not Applicable

Item 6:

Ownership of more than five percent on behalf of
another person:

Not Applicable

Item 7:

Identification and classification of the subsidiary
which acquired the security being reported on by the parent holding company:

Not Applicable

Item 8:

Identification and classification of members of the group:

Not Applicable

Item 9:

Notice of dissolution of group:

Not Applicable.

Item 10:

Certification:

Not Applicable

ECOLOGY AND ENVIRONMENT, INC.

Dated:  February 11, 2005

/s/ FRANK B. SILVESTRO

FRANK B. SILVESTRO
EXECUTIVE VICE PRESIDENT AND DIRECTOR