On January 26,1962 at 7:30 a.m.-7 Evening Grosbeaks (Hesperiphona vespertina vespertina) 4 male and 3 female, alighted on the bird feeder. No food had been placed on the feeder and immediately the Grosbeaks arose into the air. At noon on February 17, 5 Evening Grosbeaks, 2 male and 3 female, appeared at the feeder for about ten minutes eating sunflower seeds.
Author: Harriet H. Wright
Volume Number: 10 Year Published: 1962
Issue Number: 2-3
Page Number: 3
Link to article: http://birdlife.aosbirds.org/1962/Vol 10 No. 2, 3_1962_p2.pdf
Link to the full issue of BirdLife: http://birdlife.aosbirds.org/1962/Vol 10 No. 2, 3_1962.pdf