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90

Atlapetes, I 
September 29, 1962
Paraimo de Guasca             

5:35 a.m. In area where Lafs are common. Alpine scrub just below paraimo itself. Hear PL Atlapetes song. Rather disorganized when it starts. First attempts consist of nothing more than 2 or 3 "Feeoo"s. Then the first part of the complete song was repeated, by itself, several times, at irregular intervals. Only after this, were typical complete songs uttered.
  
As a result of these observations, and earlier observations near Mérida, it is obvious that this species does not have any DC pattern as such.
  
7:50 a.m. See (another) pair of PL's. Silent, except for "CN"s. Alone when first seen. Then a Laf appeared briefly in a nearby bush and then disappeared again.
  
Then, at 9:15, I came across the brilliant and varied mixed flock described in today's notes on the subject. This included one new species of Atlapetes (which I shall call "PR"), no XIV; another new species which may be Atlapetes, No. XV; and, possibly, PL. A pair of the first and third, and three of the second.
  
I shall mark PR [[yellow marker]] Its scientific name is
  
When I saw the PR's this morning, against the light, they appeared to be black above and yellow below, like rufinucha but with the crown stripe yellow in front and white behind.