Narrow Search
Sterna sandvicensis
Sterna albifrons
5
Sterna hirundo
5
Hydroprogne caspia
4
Sterna paradisaea
4
airspeed
4
flight mechanics
4
flight speed
4
wind compensation
4
Acrocephalus arundinaceus
3
Acrocephalus schoenobaenus
3
Apus pallidus
3
Ardea purpurea
3
Asio otus
3
Athene noctua
3
Buteo buteo
3
Carduelis cannabina
3
Charadrius alexandrinus
3
Cinclus cinclus
3
Circaetus gallicus
3
Circus aeruginosus
3
Corvus corax
3
Cygnus olor
3
Delichon urbica
3
Dryocopus martius
3
Emberiza hortulana
3
Erithacus rubecula
3
Falco subbuteo
3
Haematopus ostralegus
3
Hirundo daurica
3
see all ...