WebThe northern flicker or common flicker (Colaptes auratus) is a medium-sized bird of the woodpecker family. It is native to most of North America, parts of Central America, Cuba, … WebWe analysed clutch size versus nest size in 153 broods of the Northern Flicker Colaptes auratus, a woodpecker using natural cavities in British Columbia, Canada.Larger volume cavities were less susceptible to predation and cavity size was positively associated with the age and body size of males and with the body condition of female parents.

Northern Flicker - Stanford University

WebNorthern Flickers are large, brown woodpeckers with a gentle expression and handsome black-scalloped plumage. On walks, don’t be surprised if you scare one up from the … Web1 de out. de 1984 · Abstract. The Northern Flicker (Colaptes auratus), a common hole-nesting North American woodpecker, exhibits a highly significant latitudinal increase in clutch size.Using preserved clutches and information on climatic conditions and … orca frozen foods

Clutch size relative to tree cavity size in Northern Flickers

WebTable I shows that the average clutch- size is just over five for the species with relatively large eggs, about seven and a half for those with fairly large eggs, eight for those with … WebNorthern Flicker (Short, 1982). In this re-spect, flickers are typical of woodpeckers. Courtship and agonistic behaviors of the Northern Flicker have been described in de-tail by Noble (1936), Lawrence (1969), Short (1972), and Kilham (1983). It is of consid-TABLE 1. Diagnostic plumage traits scored in nesting pairs of the Northern Flicker ... WebLa taille de la couvee est significativement correlee a la fois avec le rapport productivite estivale/densite estimee de reproduction de toutes les especes de picides et avec the rapport productive/productivite hivernale, ce qui confirme l'hypothese d'Ashmole. La taille de la couvee est significativement correlee a la fois avec le rapport productivite … orca fulton county