TY - JOUR AU - Emlen, John, T. AB - Article PDF first page preview Close This content is only available as a PDF. © The Cooper Ornithological Society 1974 TI - An Urban Bird Community in Tucson, Arizona: Derivation, Structure, Regulation JO - The Condor: Ornithological Advances DO - 10.2307/1366729 DA - 1974-04-01 UR - https://www.deepdyve.com/lp/oxford-university-press/an-urban-bird-community-in-tucson-arizona-derivation-structure-8QKdnNAmCd SP - 184 EP - 197 VL - 76 IS - 2 DP - DeepDyve ER -