nest of black-headed gulls with typical clutch of eggs

animal batch bird birds black blackheaded breeding build cell clutch common dry egg eggs female fowl fruit grass gull gulls headed hen laying locule loculus made make nature nest nesting nestle nestling nidificate nidify nidus ovicell ovum replication reproduction sea seabird seagull seaside semiaquatic shell shore speckled spring summer three water waterfowl weave wildlife