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94

Atlapetes, Oct. 24, 1962, II.             

"Feeoo feeoo seeeeeeee feoo"

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Sometimes the "seeeee" was replaced by "sreeee".
  
During intervals of such song, I also heard an invisible bird uttering thin high-pitched notes in regular indeterminate series "1seeet seeeet seeeeet seeeet seeet ..." These sounded exactly like PN's of lots of Atlapates. Also uttered by PR's? A form of DC?
  
I might add that this species is more nearly territorial, or at least tends to stay lower in scrub, than the rufinuchas near Quito. Also relatively long-tailed.
  
Thus song (?), proportions, & color pattern would all suggest that the PR is quite closely related to the Yellow-throat!

Atlapetes, I 

October 30, 1962
Boqueron de Tollo
Western Andes

See a single gutturalis hopping thru uncovered scrub here, by road, 6700 ft, 4:40 p.m. Utters "Seeeeet"s. Apparently alone. Not associated with inds. of other species.