16.
- http://www.merlinfalconry.com/#!merlins-and-kestrels-compared/l25cn, accessed May 20, 2016.
|Wikimedia Commons has media related to Falco columbarius.|
|Wikispecies has information related to Falco columbarius.|
|Wikisource has the text of a 1920 Encyclopedia Americana article about Merlin or Stone-falcon.|
|Wikisource has original text related to this article:|
- Merlin Species Account – Cornell Lab of Ornithology
- Merlin - Falco columbarius - USGS Patuxent Bird Identification InfoCenter
- Picture of Black Merlin (Falco columbarius suckleyi subspecies)
- Merlin photos at Oiseaux.net
- Ageing and sexing (PDF; 5.3) by Javier Blasco-Zumeta & Gerd-Michael Heinze
- Audio recordings of Merlins on Xeno-canto.
- Merlin, Canadian Peregrine Foundation
- "Merlin media". Internet Bird Collection.
- Merlin photo gallery at VIREO (Drexel University)
-  Merlin Falcon Foundation
- "The Merlin, called in Latine Æsalon." Page 85 in The Ornithology of Francis Willughby, translated by John Ray (1678). Engraving of a perched merlin, tableaux III.
- "Falco columbarius, Pigeon Hawk"; from American Ornithology 2nd edition, volume 1 (1828) by Alexander Wilson and George Ord. Colour plate from 1st edition by A. Wilson.
- "The Pigeon Hawk" and "Le Petit Caporal", John James Audubon, Ornithological Biography volume 1 (1831). At Pigeon Hawk; Petit Caporal, in the appendix to Ornithological Biography volume 5 (1839), Audubon notes that his Falco temerarius of volume 1 was a small male merlin, and that this was brought to his attention by Charles Bonaparte, nephew of "the little corporal". Illustration from Birds of America octavo edition, 1840.