• Birds by classification (46 C, 8 P)
• Birds by year of formal description (5 C)
• Birds by location (15 C, 1 P)

.

• Individual birds (10 C, 5 P)

'

• Lists of birds (4 C, 93 P)

+

• Birds and humans (12 C, 16 P)

A

• Bird anatomy (3 C, 66 P)

B

• Bird behavior (4 C, 33 P)
• Bird common names (104 P)
• Bird redirects (5 C)
• Birds by adaptation (2 C)

C

• Bird colours (1 C, 21 P)
• Bird conservation (9 C, 64 P)

E

• Bird ecology (1 C, 1 P)
• Evolution of birds (11 P)

F

• Flightless birds (6 C, 52 P)

H

• Hybridisation in birds (1 C, 5 P)

I

• Images of birds (44 F)
• Introduced birds (1 C, 9 P)

M

• Bird mortality (2 C, 16 P)

P

• Prehistoric neornithines (1 C)

T

• Bird taxonomy (4 C, 2 P)

W

• Working birds (2 C, 4 P)

Σ

• Bird stubs (22 C, 183 P)

• Aves
• Bird

*

• List of terms used in bird topography
• Outline of birds

A

• Avian sleep

B

• Bird house
• Bird migration
• Broken-wing display

C

• Birdcage
• Chorioallantoic membrane
• Climate change and birds
• Clutch (eggs)
• Crippled-bird act

F

• Fecal sac
• Flight feather
• Flock (birds)
• Frogmouth

G

• Glossary of bird terms

H

• Helpers at the nest
• Hieraves
• Hoarding (animal behavior)
• Humphrey–Parkes terminology

K

• Kakyen

M

• Mixed-species foraging flock

N

• National Geographic Field Guide to Birds of North America
• New World warbler

P

• Template:Parulidae
• Passage migrant
• Pecten (biology)
• Pecten oculi
• Plucking post
• Portal:Birds

R

• Rhea fossilis
• Rictal bristle
• Rookery

S

• Skylarking (birds)
• Sort sol

T

• Toxic bird

V

• Vinkensport

W

• Water bird
• Wattle (anatomy)
• Wingspan