Please fill out as accurately as possible. Include only those details of which you are certain and only those observed in the field; leave blank details not observed. Attach any additional comments or details on separate sheets. Please print or type Species Northern Parula Date(s) 6 Sept. 1973 Location at mile 14.7 on Mines Rd. s. of Livermore County Alameda State Calif Elevation Observer Van Remsen Number of birds Time of Day 1245 Light conditions good sunlight Distance to bird 30-40' Optical equipment 10x50 binocs Length of time observed 10 minutes, Sex male Plumage (e.g. Breeding) breeding Overall appearance and relative size: a small, short-tailed warbler Bill: warbler shape, dark Crown and forehead: blue-gray Nape: blue-gray Face: blue-gray with partial white eye-ring Eye: dark Throat: bright lemon yellow sharply delineated from face color Breast and sides: bright lemon yellow Belly and flanks: white, sharply demarcated from yellow breast Undertail coverts: white Back: blue-gray with triangular greenish spot in center Wings: dark blue-gray with 2 white wing bars Underwings: Not observed Rump: Not observed Uppertail coverts: Not observed