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Natal down is quickly replaced by the emerging juvenal plumage and may often appear as tufts at the end of the new feathers.

Perhaps half the birds seen were in juvenal plumage.

The juvenal plumage of the Seaside Sparrow resembles that of the Sharp-tailed Sparrow.

In the juvenal plumage flight feathers of the kites are brown, barred with white, much different in appearance from the dark, slaty plumage of adults.

In juvenal plumage both species are entirely buff below, the feathers more or less tipped with dusky.