The Faculties of Birds

according action adapted Aldrovand Anat animals appear bill birds of prey Blumenbach body bones Buffon cage cardiac cavity cassowary circumstance cochlea Colonel Montagu Comp contrivance cornea covered digastric muscle digestion discover distance ducks eagle experiments external fact faculty feathers feed feet fish flight gannet gastric glands gizzard goose grain granivorous ground gullet habits hare Hist holes insects instance instinct larvæ legs less mandible manner membrane migration Montbeillard motion mouth muscles musical naturalists nature nerves nest never observed Oiseaux opening opinion organ Ornith ostrich owls papillæ pass passage peculiar pigeon portion quadrupeds reason remarkable rendered rooks says seems seen sight similar singular Sir Everard Home smell sound Spallanzani species stomach stones structure substances surface swallows taste teeth Temminck tion toes tongue toucan trituration tubes vultures walk whole wings winter woodcock young