Hypotriorchis aesalon Public domain scan - Bird, 19th-century zoological illustration print, free to use, no copyright restrictions image
Hypotriorchis aesalon Public domain scan of zoological print or book illustration, zoology, free to use, no copyright restrictions image - Picryl description
Hypotriorchis aesalon Public domain photograph of 18th-century zoological illustrations, free to use, no copyright restrictions image - Picryl description
Hypotriorchis columbarius Public domain scan - Bird, 19th-century zoological illustration print, free to use, no copyright restrictions image
Hypotriorchis femoralis Public domain scan of zoological print or book illustration, zoology, free to use, no copyright restrictions image - Picryl description