Weaverbird nests at Kenya’s Samburu National Reserve © Bernd Rohrschneider/Minden Pictures

Among the 350 species of birds found here at the Samburu National Reserve, some of the most industrious are weaverbirds. This family of birds is so named for the intricately constructed nests that many of the species weave from twigs, grasses, and leaves. You can see the birds’ handiwork on this acacia tree, where nests hang like ornaments. Some weaverbirds build elaborate nests that house hundreds of birds, with separate chambers for each pair, creating natural apartment complexes in the treetops.