Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
Caloitta - Psilorhinus
3
San Fernando to La Florida
April 28 the forest along the trail. I squeaked loudly and aroused their interest. By squeaking and giving various owl calls it is possible to hold these jays, and Caloitta also, in one place while you move in for a shot. Otherwise these jays have a habit of moving swiftly thru the forest - and although they probably are not particularly frightened by a man's presence nearby, they seem constantly to be on the move.
They are a bit more wary than Caloitta, also,
and I did not see them move towards me at any time as Caloitta will do when excited or aroused by shrieks or owl-call imitations.
The only notes I heard given by Psilorhinus is the familiar "peach" call with an occasional exposing pop mixed in. Caloitta has a note similar to this. I heard no whirthing or cawing or "wor" as I have noted for Caloitta. There is no doubt, however,
that the two birds have a similar call as described.
Flight of Psilorhinus is not unlike Caloitta, although it is heavier & less undulating - possibly swifter & more direct.
Behavior in regulation differs from Caloitta in
a few details. I approached Psilorhinus only in good thick underbrushes forest where there are many closely-spaced tall trees and an understory of small trees (15-20 feet) & shrubs + vines. Therefore,
it was harder to see the brown jays - but even so-