The first edition of Bird Life has the letters ABCDEF on page 160. © 1991 by Stephen W. Kress. Illustrations © 1991 by John D. Dawson. Published by Golden Press. No price listed. But my copy has a barcode sticker on the back pricing this book at $3.95. The full ISBN number on the back cover is 0-307-24079-7.
This title also exists in a large (5 ¼ by 7 ¾ inch) hardcover. The number on the back cover is 0-307-64079-5.
No cover variant or revised Golden Press edition exists that I am aware of. Still in print by St. Martin's Press.