Saguaros are the giants of the cactus family growing like trees in the Sanoran Desert. A keystone species, it provide habitats for various birds thanks to the efforts of the gila woodpecker that bores a hole for its nest for a season then ...See moreSaguaros are the giants of the cactus family growing like trees in the Sanoran Desert. A keystone species, it provide habitats for various birds thanks to the efforts of the gila woodpecker that bores a hole for its nest for a season then abandons it to other species of tenants. Written by
David Foss
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