Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
K. Selander,
1953
2
Calocitta formosa
Tuxtla Gutierrez, Chiapas, Mexico
Oct. 2
increasingly common as you go NW from Villa
Allende (and also down in elevation). Villa
Allende is most southern point that Almaroz
has seen Psilorhinae . According to him it is
a bird of the wet lowlands, Calocitta said
not to be present north of Villa Allende.
Almaroz talked to two persons in Villa Allende
who have seen the strange joy. One saw a flock
of 4 "several years ago" and the other one
saw two "several years ago". It is Almaroz's
impression that the joy appears only in certain
years - rather than being constantly present.
He has a theory that it may live in the gorge
gorge is called "Sumidero"
of the Rio Chiapa ( Sumideros ) which is
a steep walled canyon north of Tuxtla. He
says that no one has ever been down in the canyon
since the walls are perfectly vertical and there
are rapids and falls there. I can well believe
this from what I have seen of the area both
from the plane coming into Tuxtla and from
my experience along the Rio Tuxtla NE of Tuxtla
- where even there the walls of the gorge drop
vertically from 100 feet or more in some places.
It is his idea that small bands of individuals
wander up from the canyon in certain years.
One of the men from Villa Allende who has seen the
"ursoca c. negra" is coming down to Tuxtla to deliver