Northern gannet
Like other seabirds, northern gannets take several years to attain adult plumage, going through various stages of mottled dark-and-white plumages before becoming pure white with black wing-tips at four to five years of age.
Like other seabirds, northern gannets take several years to attain adult plumage, going through various stages of mottled dark-and-white plumages before becoming pure white with black wing-tips at four to five years of age.