Lesser Striped Swallows (Hirundo abyssinica) in iMfolozi Game Reserve. These swallows eat insects, especially flies, and also other invertebrates, grass seeds, tadpoles, small fish and scraps of human food. The nest, built by both sexes, is a deep cup of dry grass, weeds, roots, stems, leaves, downy seeds, flood debris, string and other coarse materials. The interior is lined with rootlets, fine grass, hair and feathers. Breeding pairs rear multiple broods in each breeding season, usually up to three per season in southern Africa.