Transcribing the field notes of the Museum of Vertebrate Zoology

Collector: Grinnell - 1925 Location: Mineral, 4800 ft. Date: June 29 Page Number: 2509

Hermit Thrush nests, with young, previously found, these latter being off the edges of the bog on either side, while the Russet-backs is [sic] in the bog.

Traill Flycatcher's nest just found by Mrs. G.; in willow bog only about 100 yards from the other one found today. Rim only 750 mm. above ground; nest in rather open low thicket, of lush leafage, but surrounded by taller growth of willow and alder; supported on slanting willow stem, with other twigs and leafage. Taken (3/4) along with [female symbol] parent. Male birds keep out of sight in willows; heard to sing in usual fashion. Eggs perfectly fresh.

Saw full fledged young Tolmie Warbler in the willows.

6271 Russet-backed Thrush [female symbol] 29.5 g. With set 1/4 (see p. 2508);

6272 Sierra Hermit Thrush [male symbol] ju. 24.0 g. From brood found on June 20 (see p. 2463). As I touched the nest, the four youngsters, even tho seemingly so undeveloped, decamped in as many directions with cries which brot [sic] the distracted mother. Each went over and under logs and bush with amazing celerity; the nest was forsaken for good - the safest procedure to the average, I suppose, in the long run. I found also that the other nest of this species (see p. 2482) had been left by the brood (of about same age) - save for one dead and partly skeletonized, by ants, in the bottom of the nest.

Collector: Grinnell - 1925 Location: Mineral Date: July 3 Page Number: 2519

Audubon Warbler, Calaveras Warbler, Sierra Hermit Thrush, Western Robin, Mountain Chickadee, Western Tanager, Fox Sparrow, Modoc Hairy Woodpecker, Pacific Nighthawk (at dusk). Going across Battle Creek Meadows through Gerber's (?) ranch, saw a [male symbol] Western Evening Grosbeak about a cow-corral, about as a Linnet would behave in a lower zone.

6283 Eutamias senex [male symbol] 79g. 232x98x34x17. Testes large. Shot from fir log overgrown with snowbush, at 5500 ft., on north side of Turner Mt.

July 4 - blank!]

July 5 11 a.m. - Up Viola trail, at about 5600 ft., at willowy edge of cienaga. Warbling Vireo's nest and 3 fresh eggs and female parent taken: rim of nest 12 ft. 2 in. (measured) above ground near end of slanting, spindling will [sic] stem - willow clump in shade of firs and sugar pine. Nest located by following up volubly singing bird, which proved to be on the nest, but left, and was replaced in degree of solicitation by bird which was shot.

Spent the forenoon on the ridge up the Viola Trail, going not higher than 5600 ft., however. Started a [sic] 8 and got back about 12:30. The last few days birds have become notably quieter. Very few are singing now at all. Earlier, I got to know individual birds along the trail, by the location of their "singing trees." But for

Collector: Grinnell - 1925 Location: Mineral Date: July 29 Page Number: 2536

6299 Calaveras Warbler [female symbol] ju.* 8.6g. at 5500 ft. 6300 [Calaveras] [Warbler] [female symbol] im.* 8.3g. [at] [5500] [ft.] 6301 Sierra Creeper [male symbol] ad.** 30.9g. testes - [testes illustration] [at] [5500] [ft.] 6302 Mariposa Fox Sparrow [male symbol] ad.* 30.9g. testes - [testes illustration] [at] [5500] [ft.] 6303 Mountain Quail [male symbol] ju. 48.6 g. In rat-baited trap ^^{in willows} near camp. 6304 Tolmie Warbler [female symbol] ad.*** 9.4g. At 5500 ft. 6305 Cassin Vireo [female symbol] ad.** 14.9g. [at] [5500] [ft.] 6306 Sierra Hermit Thrush** [female symbol] ad. 23.6g. [at] [5500] [ft.] 6307 Green-Tailed Towhee [male symbol] ad.* testes - [testes illustration] 26.7g. [at] [5500] [ft.]

*Shot in arctostaphylos patula bush.

6308 Thomomys monticola [male symbol] ju. 71.5g. 192x67x25.5x6.5. 6309 [Thomomys] [monticola ] [female symbol] ju. 47.5g. 166x56x24.5x6.

July 30

Saw a single Nighthawk last evening, and saw it swoop and boom once.

6310 Thomomys monticola [female symbol] ju. 51.5g. 174x58x25x7. 6311 Sorex v. amoenus (?) 4.6g. 100x37x12x3. (In formalin.) 6312 [Sorex] [v.] [amoenus ] (?) 4.2g. 105x41x12.5x3.5.

These two shrews in mouse traps set in rank grass under willows in the "bog." 6313 Thomomys monticola [male symbol] ju. 71g. 180x60x27x8. 6314 [Thomomys] [monticola] [male symbol] 76g. 188x67x27.5x8.5.

July 31 Took a 4-hour census sheet on, and in the vicinity of, Battle Creek Meadows this forenoon, as per accompanying census sheet. Mrs. G. pencil-checked on cardboard, results, 31