Hirundo rustica. Swallow.
Picryl description: Public domain image of a bird in flight, free to use, no copyright restrictions.
65. The Cliff Swallow (Hirundo fulva). 66. The Small Green-crested Fly...
Picryl description: Public domain image of a bird in flight, free to use, no copyright restrictions.
Sterna hirundo. Common Tern. - Public domain botanical illustration
Public domain scan of print / book page depicting birds, ornithology, free to use, no copyright restrictions image - Picryl description
1. Balassian [Balastian] Swift, Cypselus palmarum. 1a. Male, 1b. Femal...
Public domain illustrated book page scan, related to zoology, free to use, no copyright restrictions image - Picryl description
Trigla Hirundo, The Tub-Fish. - Public domain drawing
Public domain scan of a fish, book illustration or drawing, free to use, no copyright restrictions - Picryl description.
61. The Purple Martin (Hirundo purpurea). 62. The Bank Swallow (Hirun...
Public domain scan of 19th-century zoological illustration, free to use, no copyright restrictions image
275. The Common Tern (Sterna hirundo). 276. Ditto, young.
Public domain scan of 19th-century zoological illustration, free to use, no copyright restrictions image
63. The White-bellied Swallow (Hirundo bicolor). 64. The Barn Swallow ...
Public domain scan of 19th-century zoological illustration, free to use, no copyright restrictions image
Zoologie. Oiseau. 1. Coucal houhou (Centropus Ægyptius); 2. Coua noir ...
Public domain illustrated book page scan, related to Egypt, free to use, no copyright restrictions image - Picryl description