Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
Humilei - chiapensis
70
Study area #1
April 10 Down stream from study area I hunted in a dense stand of BHA trees - up to 18 feet high mixed with a common bushy tree. Humilei was abundant in this habitat - a pair singing every 30-40 yds. A pair of chiapensis in same place @ humilei.
On other side of river humilei occurred but was less common in the good brushy tree growth there than in the stand of BHA. Pair of chiapensis noted nest in a big amate.
The dense stands of BHA + bushy trees grow on sandy areas and flats adjacent to the river. This is best habitat yet for humilei - it seems to prefer this to more luxuriant vegetation.
Noted a string of pine trees on the very summit of the foot hill not far from the study area. The deciduous forest on their hill is made up of rather widely spaced trees and near the summit - below the pines, there are extensive bare areas.
Ran again today in Donald but it was clear a few miles to the NW.
Bonifacio shot 4 chiapensis downstream from the study area near a rancho and very close to where I found humilei so common in the stand of BHA.
Noted that the iris of humilei is less red than that of chiapensis or nigricaudatus.