Bird Notes, Part 1, v658
Page 503
Image from the Biodiversity Heritage Library. Contributed by Museum of Vertebrate Zoology, University of California, Berkeley. | www.biodiversitylibrary.org
Transcription
(235) and which only a generous soul would entrust to a tyro to be used in the bushes) held carefully out of reach of the inquisitive youngsters, other I managed without the assistance of the other three or four hands which I should have had, to get the little imps rallied ground for the Great Endeavor. Considering that they were not aware of the grav- opportunity of the occasion and believed that it was simply another xxxxxx for eating, they behaved very well. As there were three of them, all in motion, it looked like a hopeless task. However, the boldest one was not very hard to match with the charts, as his persistence kept him pretty well in focus, and after getting him "calibrated" I could use him as a standard with which to compare the others. After doing th this, however, I found I could get pretty fair direct reading-s on the others. I would say that the iris of No.1 corresponds to Ridgway's Brownish Olive, Plate XXX, and that all of them may be considered as having eye shades --just now--lying within the group: Brownish Olive, Olive, Buffy Olive and Light Brownish Olive. The differences are very slight. It should be noted that the Brownish Olive is the same shade as Dr. Grinnell's suggestion of Sepia, but is two hues nearer the green end of the spectrum in color. If I interpret Ridgway correctly, this eye color may be regarded as made up as follows: Beginning with Light Cadmium, which is a e yellow hue of the orange of the spectrum or an orange hue of the yellow of the spectrum lying xxxxxaaxxxxrxxxxxatxxxxxthe yellow than to the orange of the spectrum made up of about 47% of orange and 53% of yellow, ad- dition of 58 % of neutral gray gives his Honey Yellow (Pl.XXX). Addition of 87.5% of black to this gives Brownish Olive. It will appear as if there were no green in this, yet, whether it be due to bias or other causes, Ridgway's Brownish Olive looks to me as if it contained some green. I do not know how his printer got his blacks, outward to it but ordinary printer's ink is commonly based on lamp black or carbon