Treron calva - 1820-1860 - Print - Iconographia Zoologica - Special Co...
Treron calva Public domain scan of drawing, Birds, 19th-century zoological illustration, free to use, no copyright restrictions image - Picryl description
Treron nudirostris - 1700-1880 - Print - Iconographia Zoologica - Spec...
Treron nudirostris Public domain scan of 19th-century zoological illustration, free to use, no copyright restrictions image
Vinago Delalandii Davies - Public domain zoological illustration
Treron calvus Public domain photograph of 20th-century zoological illustration, free to use, no copyright restrictions image - Picryl description
Treron calvus - A green bird sitting on a branch of a tree
Treron wakefieldi [sic], "Mombas" = Treron calvus wakefieldii Sharpe, 1874 English: Adult of African Green-pigeon (Treron calvus wakefieldii)
Bradyornis Treron Keulemans - A couple of birds sitting on top of a tr...
Bradyornis subalaris [sic], "Mombas" = Bradornis pallidus subalaris Sharpe, 1874 Treron wakefieldi [sic], "Mombas" = Treron calvus wakefieldii Sharpe, 1874 English: Adults of Pale Flycatcher (above) and Africa... More
Iconographie des pigeons (Pl. I) (8100057318)
PHALACROTRERON DELALANDII, Bp. [= Treron calvus delalandii (Bonaparte, 1854) ] a . Phalacrotreron abjssmica, Bp. ex Lath.
Iconographie des pigeons (Pl. XXVI) (8100058492)
Oiidart d P Bertrand Editeur. Imp Umercier.Pans PHALACROTRERON NUDIROSTRIS,^/.,.;.^.-. [= Treron calvus nudirostris] a.Phalacrotreron calva, Bp exiemm
Osteologia avium, or, A sketch of the osteology of birds (PL. 21) (851...
WW lr&m.lfafotf~6 0z/&u. fyJC^nz&fa 1 1 PhalcuyrotjT'vn wudiros trie 2 Ptotvrwpws cinctus 3. Abbcugis G&yi
Phalacotreron Nudirostris Bonaparte - A couple of birds sitting on top...
Phalacotreron nudirostris = Treron calvus nudirostris
Phalacotreron Delalandii Bonaparte - A drawing of two birds sitting on...
Phalacotreron delalandii = Treron calvus delalandii