Difference between revisions 708539 and 708540 on mediawikiwiki

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The ''Golden-crowned Sparrow'' ('''Zonotrichia atricapilla''') is a large [[American sparrow]] found in the western part of the North America.

==Systematics==
(contracted; show full) to signal social status in wintering flocks.  Such signals help to reduce the incidence of confrontation between flock mates, thereby reducing such potential costs as injuries or the unnecessary expenditure of energy.  The size and color of a bird's crown patches are better predictors of [[dominance (ethology)|dominance]] (indicating which bird will avoid confrontation with another) than are the bird's size or sex. Birds with similarly sized gold crown patches are far more likely to engage in [[
antagonistic behavior]] than are those showing differences, and the outcomes of such confrontations can be predicted based on the color of their black stripes. This suggests that social status in this species involves more complexity than a single signal will allow, and that the multiple color patches allow a gradient of interactions between flock mates.

===Similar species===
(contracted; show full)
*[http://www.xeno-canto.org/browse.php?query=Golden-crowned+Sparrow+%28Zonotrichia+atricapilla%29+12&species_nr=wpexuc Golden-crowned Sparrow sound recordings] on xeno-canto.org

[[Category:Zonotrichia]]
[[Category:Animals described in 1789]]