Transcribing the field notes of the Museum of Vertebrate Zoology

Collector: Grinnell-1925 Location: Mineral, 4800 ft. Date: June 19 Page Number: 2482

7:30 p.m. - Sultry today and thunderstorms around us but only a sprinkle here. First Pacific Nighthawk out at 6:45, in flight overheard - earlier than usual, probably because partly cloudy.

A Chipping Sparrow's nest at camp is (about) 18 feet up near the outer end of a horizontal limb of a middle-sized sickly yellow pine - about 6 feet out from bole of tree, pretty well concealed and sheltered by tufts of needles. On the 13th this nest contained two fresh eggs. It was discovered that morning early from my bed, by my seeing the bird spiral down from much higher in the tree and then go out on the limb to the nest - a very elusive mode of approach. Even now, after the bird has begun to sit closely, we rarely see her. Indeed for a day or two, I suspected the nest to belong to a warbler, since my first view of the bird was toward the bright sky light and disclosed only a smallish form in rapid motion.

June 20. A vagrant (?) [male symbol] Black-headed Grosbeak (only the second I have noted in the vicinity of Mineral) made himself conspicuous by singing loudly and continuously around camp before sun-up.

8:00 a.m. - At Hermit Thrushes' nest (see p. 2468). The young, all four, hatched on the 18th. They already look huge, but with eyes yet closed. Mrs. G. found the two segments of an eggshell about fifty feet