Many hundreds can be seen at a time on the plains of India. They do not normally form large breeding colonies, but are gregarious outside the breeding season. They normally nest under cliff overhangs in their mountain homes, but will readily adapt to buildings such as mosques and bridges. Red-rumped Swallows build quarter-sphere nests with a tunnel entrance lined with mud collected in their beaks, and lay 3 to 6 eggs. They are fast fliers and they swoop on insects while airborne. They lack a breast band, but have black undertails. They resemble Barn Swallows, but are darker below and have pale or reddish rumps, face and neck collar. They have blue upperparts and dusky underparts. Red-rumped Swallows are somewhat similar in habits and appearance to the other aerial insectivores, such as the related swallows and the unrelated swifts (order Apodiformes). They winter in Africa or India and are vagrants to Christmas Island and northern Australia. The Indian and African birds are resident, but European and other Asian birds are migratory. It breeds in open hilly country of temperate southern Europe and Asia from Portugal and Spain to Japan, India and tropical Africa. The Red-rumped Swallow ( Cecropis daurica) is a small passerine bird in the swallow family.
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