| Birds' wing sounds | 22 |
| Birds' semiannual flight | 28 |
| Birds' positions at feeding time? | 37 |
| Birds' pates | 16 |
| Birds' partners | 19 |
| Birds' output | 17 |
| Birds' morning song | 23 |
| Birds' migration time | 25 |
| Birds' homes | 16 |
| Birds' home | 15 |
| Birds' crops | 16 |
| Birds' class | 16 |
| Birds' build? | 17 |
| Birds' biological class | 27 |
| Birds' bills | 16 |
| Birds' best friend | 22 |
| Birds' beaks | 16 |
| Birds' abodes | 17 |
| Birds' "thumbs" | 29 |
| Birds ____ feather | 18 |
| Birds ___ feather | 17 |
| Birds ___ | 9 |
| Birds without voice boxes | 25 |
| Birds with webbed feet | 22 |
| Birds with vivid plumage | 24 |
| Birds with valuable plumes | 26 |
| Birds with two pairs of eyelids | 31 |
| Birds with showy tails | 22 |
| Birds with showy plumes | 23 |
| Birds with showy mates | 22 |
| Birds with S-shaped necks | 25 |
| Birds with recurved plumage | 27 |
| Birds with rare binocular vision | 32 |
| Birds with loud calls | 21 |
| Birds with inflatable neck sacs | 31 |
| Birds with hanging nests | 24 |
| Birds with green eggs | 21 |
| Birds with dark green eggs | 26 |
| Birds with colorful mates | 25 |
| Birds with binocular vision | 27 |
| Birds with a name from Greek myth | 33 |
| Birds with "meat cleaver" bills | 41 |
| Birds whose heads can rotate 135 degrees left or right | 54 |
| Birds who initiate lawsuits against marsh developers? | 53 |
| Birds who get busy right up to April? | 37 |
| Birds that utter booming notes | 30 |
| Birds that talk back | 20 |
| Birds that symbolize peace | 26 |
| Birds that sound deserving | 26 |
| Birds that sound batty | 22 |
| Birds that resemble bitterns | 28 |
| Birds that might deliver a bundle | 33 |
| Birds that may be spotted | 25 |
| Birds that look sorta like penguins | 35 |
| Birds that look a bit like penguins | 35 |
| Birds that lay green eggs | 25 |
| Birds that grab bats | 20 |
| Birds that can't fly, e.g. | 30 |
| Birds that can't fly | 24 |
| Birds that can sprint at 30 m.p.h. | 34 |
| Birds that can mimic human speech | 33 |
| Birds that brood | 16 |
| Birds that are rarely black | 27 |
| Birds that ape human speech | 27 |
| Birds that ape | 14 |
| Birds take this | 15 |
| Birds said to feed their young with elephants | 45 |
| Birds sacred to Thoth | 21 |
| Birds resembling gulls | 22 |
| Birds related to the troglodytes | 32 |
| Birds related to the goldfinch | 30 |
| Birds related to gulls | 22 |
| Birds raised on some ranches | 28 |
| Birds raised on ranches | 23 |
| Birds raised for food | 21 |
| Birds or trees | 14 |
| Birds or settlers | 17 |
| Birds or lizards | 16 |
| Birds or fruit | 14 |
| Birds on Golden Pond | 20 |
| Birds on Canadian dollars | 25 |
| Birds on Canadian coins | 23 |
| Birds on a ranch | 16 |
| Birds of _____ | 14 |
| Birds of ___ | 12 |
| Birds of the pampas | 19 |
| Birds of the Arabian Nights | 27 |
| Birds of spring | 15 |
| Birds of S. A. | 14 |
| Birds of prey near a New York river? | 36 |
| Birds of prey | 13 |
| Birds of peace | 14 |
| Birds of passage | 16 |
| Birds of New Zealand | 20 |
| Birds of myth | 13 |
| Birds of merit? | 15 |
| Birds of crosswords | 19 |
| Birds of a sort | 15 |
| Birds of a region | 17 |
| Birds of a feather flock together, but ... | 42 |