Among the 83 code 3 birds, 14 were identified as species breeding regularly in the ABA area (Table 3). Some code 3 birds that are thought to breed in small numbers in the area weren't included such as the Ivory Gull, Red-throated Pipit, Clay-colored Thrush, Buff-collared Nightjar and the Black-capped Gnatcatcher. Their respective ranges may change by the next edition of the Nat Geo Guide.