Merlin (bird) this phenomenon is due to the fluctuations of supplementary food stocks discussed above. Merlin (bird) The merlin ("Falco columbarius") is a small species of falcon from the Northern Hemisphere, with numerous subspecies throughout North America and Eurasia. A bird of prey once known colloquially as a pigeon hawk in North America, the merlin breeds in the northern Holarctic; some migrate to subtropical and northern tropical regions in winter. Males typically have wingspans of , with females being slightly larger. They are swift fliers and skilled hunters who specialize in preying on small birds in the size range of sparrows to
Scaly-naped pigeon Scaly-naped pigeon The scaly-naped pigeon ("Patagioenas squamosa"), also known as the red-necked pigeon, is a bird belonging to the family Columbidae. The species occurs throughout the Caribbean. The scaly-naped pigeon is a large slate grey pigeon (14–16 in), with maroon coloured plumage around the neck. The plumage on the species' nape appears scaly, explaining both the common and scientific names of the species. There is a bare patch of skin which surrounds the birds red eyes; this patch tends to be reddish in males and more yellow in females. The legs and the base of the bill of the species