Brown Pelican (Pelecanus occidentalis)
Linnaeus, 1766. 5 subspecies recognized, here are shown occidentalis (Costa Rica) and urinator (Galapagos Islands).
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Breeding plumage The white on head separates it easily from juveniles. There is no sexual dimorphism, but there is a change of plumage in breeding adults, which have dark brown nape and posterior side of neck, forming a very contrasted white line in both sides of neck.
