cactus wrens build their nests in cholla cacti to avoid predators
turbinicarpus is cactus. cactus_wren is wren. cholla is cactus. pacherocactus_orcuttii is cactus. brady_pincushion_cactus is cactus. rattail_cactus is cactus. rauhocereus is cactus. cactus_wren is bird. chiotilla is cactus. haageocereus is cactus.