Utah: 23 records, May 8 to July 16; 12 records, June 6 to 17.
Washington: 21 records, May 28 to June 24; 11 records, June 2 to 7.
Baja California: 11 records, May 8 to June 12; 6 records, May 15 to June 2, indicating the height of the season.
Mexico: 6 records, June 4 to 20 (Harris).
DENDROICA PETECHIA AMNICOLA Batchelder
NEWFOUNDLAND YELLOW WARBLER
HABITS
Based on a series of 14 adult males and 3 adult females from Newfoundland, Charles F. Batchelder (1918) gave the above name to the yellow warblers that breed in that region. After giving a detailed description of the type from Curslet, Newfoundland, he remarks: "When seen in series, the yellow of the under parts is duller, less richly golden, and the chestnut streaks are darker. In comparison with aestiva, the female is duskier, less yellowish, throughout the upper parts. * * *
“In general coloring D. ae. amnicola shows a certain similarity to D. ae. rubiginosa, but it is readily distinguishable from that race by the yellow forehead which, as in D. ae. aestiva, contrasts strongly with the green of the back.”