cactus wrens building nests in cholla cacti does not harm the cholla cacti
cholla is cactus. rauhocereus is not cactus. rattail_cactus is not cactus. brady_pincushion_cactus is not cactus. siler_pincushion_cactus is not cactus. button_cactus is not cactus. cholla is not cactus. pierrebraunia is not cactus. pacherocactus_orcuttii is not cactus. pacherocactus_orcuttii is cactus.