1805 in birding and ornithology


 * The entomologist Gustaf von Paykull described the crab plover in Kongl. Vetenskaps Akademiens Handlingar Stockholm
 * Marie Jules César Savigny published an account of the sacred ibis titled  Histoire naturelle et mythologique de l'ibis
 * King Island emu became extinct in the wild.
 * Eugenius Johann Christoph Esper became professor of zoology and director of the zoology museum  at Erlangen university.
 * Johann Gotthelf Fischer von Waldheim founded the Société Impériale des Naturalistes de Moscou.
 * Anselme Gaëtan Desmarest published Histoire Naturelle des Tangaras, des Manakins et des Todiers

Ongoing events
Louis Pierre Vieillot Histoire naturelle des plus beaux oiseaux chanteur de la zone torride Birds described in this work in 1805 include the black-bellied seedcracker, the orange weaver and the black-necked weaver