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The 44th Annual Report of the California Bird Records Committee: 2018 Records

2020; Volume: 51; Issue: 3 Linguagem: Inglês

10.21199/wb51.3.4

0045-3897

Thomas A. Benson, Rob Fowler, Guy McCaskie, Justyn T. Stahl,

Species Distribution and Climate Change

From its last report through 2018 the California Bird Records Committee reached decisions on 287 records involving 267 individuals of 79 species, two species groups, one hybrid, and two introduced populations, endorsing 250 records of 238 individuals and two introduced populations.The first accepted California records of the Eastern Meadowlark (Sturnella magna), the Tropical Parula (Setophaga pitiayumi), and the eastern group of subspecies of the Curve-billed Thrasher (Toxostoma curvirostre) are outlined in this report.The committee also voted to add naturalized populations of the Yellow-chevroned Parakeet (Brotogeris chiriri) and the Red-whiskered Bulbul (Pycnonotus jocosus) to the state list.These additions bring California's total list of accepted species to 675, of which 13 represent established introductions.Other notable records detailed in this report include the state's second Common Ringed Plover (Charadrius hiaticula), Marsh Sandpiper (Tringa stagnatilis), Gray Hawk (Buteo plagiatus), and Eurasian Skylark (Alauda arvensis), and third Wood Sandpiper (Tringa glareola), Tristram's Storm-Petrel (Hydrobates tristrami), and Red-flanked Bluetail (Tarsiger cyanurus).This 44 th report of the California Bird Records Committee (CBRC), a committee of Western Field Ornithologists, summarizes evaluations of 287 records involving 267 individuals of 79 species, two species groups, one hybrid, and two introduced populations.The committee accepted 250 of the 287 records, involving 238 individuals of 66 species, two species groups, one hybrid, and two introduced populations for an acceptance rate of 87.1%.A record is considered accepted if it receives no more than one "not accept" vote from the nine voting members if the identification is considered questionable, or no more than two "not accept" votes if the bird's natural occurrence is considered questionable.We consider 15 records of 11 individuals to represent returning or continuing birds.Thirty-six records, involving 37 individuals of 26 species and one species group, were not accepted because the identification was considered to be unsubstantiated; one record involving one individual was not accepted because its natural occurrence was questionable.For review, reports of multiple individuals together are given the same record number; we report the total number of accepted individuals, which may be different from the number of accepted records.Although most of the records in this report are of birds first documented in 2018, 24 are from prior years.Since the period covered by this report, the committee has accepted the first California record of the Yellow-browed Warbler (Phylloscopus inornatus), the details of which will be published in the next (45 th ) report.This addition brings the California list to 676 species.At its January 2020 annual meeting,