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
Tooth-billed pigeon Tooth-billed pigeon The tooth-billed pigeon ("Didunculus strigirostris"), also known as the manumea, is a large pigeon found only in Samoa. It is the only living species of genus "Didunculus". A related extinct species, the Tongan tooth-billed pigeon ("Didunculus placopedetes"), is only known from subfossil remains in several archeological sites in Tonga. The tooth-billed pigeon is the national bird of Samoa and featured on the 20 "tālā" bills and the 50 "sene" pieces of the 2008/2011 series. The tooth-billed pigeon is a medium-sized, approximately 31 cm long, dark pigeon with reddish feet and red bare skin around the eye. The underparts,