ML132183731
Přispěvatel
Datum
Lokalita
- Věk
- Nespecifikováno
- Pohlaví
- Nespecifikováno
- Hlasová provokace
- Nespecifikováno
Podrobnosti k pozorování
First Modoc County record. Seen and heard 0725-910 as it sang repeatedly (more than 100 full songs) in clumps of willows on either side of Post St. Song consisted of fairly high-pitched, descending phrases of slurred notes with a flutelike quality, with the initial phrases being higher-pitched than the latter phrases. Most songs consisted of four such phrases (two higher and two lower), though the bird often gave three-phrase songs, and on a few occasions it gave two or five phrases. The bird also gave a descending “view” or “veer” call about 15 times. This call was usually loud, and was given between bouts of song. Sometimes it was fairly clear, and sometimes it had a burry quality. The bird was likely of the western subspecies salicicola based on upperparts coloration and the nature of spotting on the underparts. The bird did not have the very bright, almost orangish-rust color on the upperparts or the breast of nominate fuscescens with which I am familiar from the East Coast. However, for a West Coast Catharus thrush, it was still a relatively colorful bird, being somewhat brighter reddish-brown (with more of a rusty or reddish tone) on the upperparts than an ustulatus Swainson’s Thrush. The crown, back, rump, and uppertail were more or less uniform with respect to this overall reddish-brown color. The face was fairly plain, being grayish-brown with a bit more mottling than on the upperparts (i.e., grayer, and not as uniform, as the crown and hindneck). The face, including the lores, was a bit paler than the crown and hindneck. The rear half of the orbital ring was paler than the rest of the head and face, but the anterior half of the orbital ring was not as pale and thus not noticeably different from the rest of the face. The color and pattern of the underparts was intriguing in that the bird gave two distinctly different “looks”. When the bird was singing from a perch well within the willow thicket, there was some sunlight on the bird’s underparts, and they showed the classic Veery pattern of a warm rusty-buff wash across the breast with small, very faint, barely darker spotting within the rusty-buff wash. However, when the bird was on the ground at the edge of the willow thicket, in fairly deep shade, the underparts looked much colder and the spotting on the breast and sides of the throat was much darker and more clearly defined. Even when the spotting appeared more prominent, it was clear that the individual spots were smaller/finer than on a Hermit or Swainson’s Thrush. The flanks were pale gray, being darker than the whitish central belly, but not by much, and contrasting strongly with the color of the folded upperwing.
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