"Der Vogelflug als Grundlage der Fliegekunst" (Berlin 1889)

Le vol de l'oiseau comme base de l'art du vol.
Bird flight as flying art basis.

Chroicocephalus ridibundus	Cygnus olor	Anas platyrhynchos	Falco tinnunculus
Cygnus olor	Anas platyrhynchos	Ardea cinerea - Héron cendré - Grey Heron	Branta Canadensis
Branta leucopsis - Bernache nonnette - Barnacle Goose	Anas platyrhynchos	Anser anser	Carduelis carduelis
Dessin de Chaval	Ciconia Ciconia - Cigogne blanche - White Stork	Circus cyaneus	Columba palumbus
Cygnus olor	Egretta garzetta - Aigrette Garzette - Little Egret	Falco tinnunculus	Fulica atra
Larus marinus	Chroicocephalus ridibundus	Parabuteo unicinctus	Cyanistes caeruleus
Phalacrocorax carbo	Sturnus vulgaris

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