ornithological illustration
House sparrow Passer domesticus Male
Tree sparrow Passer montanus Male
Gull Larus wing anatomy
Gull Larus head anatomy
Gull Larus in flight anatomy
Gull Larus body anatomy
House sparrow Passes domesticus Female
House sparrow Passer domesticus
Coal Tit Periparus ater
Barn swallow Hirundo rustica in flight
Barn swallow Hirundo rustica