Transcribing the field notes of the Museum of Vertebrate Zoology

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Pages That Mention Swainson's Thrush (ustulatus)

1925: Joseph Grinnell's field notes

S2 Page 55
Indexed

S2 Page 55

Collector: Grinnell - 1925 Location: Mineral Date: June 28 Page Number: 2508

poising, motionless, at times against the stiff west wind. Mrs. G. found a family of Golden crowned Kinglets in a group of young firs near camp - adults and 4 young, fully grown. I had a clear view of the two of the young - white line over eye, contrasted against dusky or blackish top of head.

June 29 8 a.m. - Traill Flycatcher's nest: in bog, chiefly grown to willow, but some white alder; located out in jungle, alongside of indistinct deer-trail; overtopped, well shaded, by lush green willow and older foliage; rim 1400 mm. above ground, nest insse^securely supported among cluster of upright small willow stems and emanating leaves. Taken (2/4)*, and [female symbol] parent shot.

Russet-backed Thrushes' nest: in same bog as last; rim 780 mm. above ground; situated in rather low willow clump, with larger (taller) clumps of willow and white alder about separated from one another by openings grown to lush grass and buttercup; a meadow stream runs 20 feet away. The green leafage above and all about the nest effectually conceals the nest until parted. The nest is supported on a slanting willow stem plus adjacent twigs and foliage. Taken (1/4)**, and [female symbol] parent taken; [male symbol] heard singing in vicinity mornings and evenings ever since we have been here. Mrs. G. found this nest. The site is almost directly between those of the two

Last edit almost 10 years ago by kcorriveau
S2 Page 56
Indexed

S2 Page 56

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.

Last edit almost 10 years ago by kcorriveau
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