Sclater’s papers on Mexican ornithology
Sclater’s papers on Mexican ornithology
Ornithological papers: Solomon Islands
Ornithological papers: Solomon Islands
Ornithological papers on birds of South America
Ornithological papers on birds of South America
Index of the ornithological literature 1870-1872
Index of the ornithological literature 1870-1872
Ornithological tracts: Sclater
Ornithological tracts: Sclater
Birds of Ecuador: Fraser
Birds of Ecuador: Fraser
Pelicans
Pelicans