Order: Passeriformes
Family: Certhiidae
Genus: Certhia
Species: Certhia americana


By Alan Vernon (Flickr: Brown creeper (Certhia americana)) [CC-BY-2.0], via Wikimedia Commons

Brown Creepers (Certhia americana) are small passerine birds often found climbing up and around tree trunks. Both sexes are of similar size; weighing anywhere from 0.2 to 0.4 ounces with a body length ranging from 4.7 to 5.5 inches and a wingspan of 6.7 to 7.9 inches (Cornell Lab of Ornithology 2014). Males and females also share morphological coloration and patterning with dorsal mottling of browns and white (Sibley 2003). This works as great camouflage as this is the side primarily exposed as they climb and forage for food amongst trees. Their ventral side is uniformly buffy white. Their curved, tweezer-like bill is used to forage for insects in the crevices of tree bark and associated flora such as moss (Collins, Personal obs. 2014; Weikel and Hayes 1999). It is one of seven Creeper spp. in its family and is the only one found in North America (Sibley 2001).


Brown Creeper — Humber Bay Park, Toronto, Canada — 2006 April

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