Mass of occupied Common house martin, Delichon urbicum, nests in spring. Portugal.

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Size: 7059px × 4973px
Photo credit: © Bob Gibbons / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: avian, bird, bird-watching, birding, birds, birdwatching, breeding, colonial, colony, common, delichon, house, martin, natural, nature, nest, nest-building, nesting, nests, northern, ornithology, plumage, reproduction, season, social, spring, urbicum, wildlife