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The iridescent throat patch of this male Anna's hummingbird is called a gorget, and extends over its head. The gorget helps identify this hummingbird commonly found in the UC Santa Cruz Arboretum.
This White-crowned sparrow was hopping among the flowers on this Grevillea in the Australian garden of the UC Santa Cruz Arboretum.
This Golden-crowned sparrow was hopping among the flowers on this Grevillea in the Australian garden of the UC Santa Cruz Arboretum, stopping frequently to pick at the flowers. This bird has been tagged for identification by researchers, as you can see by the colorful bands on each leg.
