late and urgent attention, so I left them. At 9 A.M. Brown- eyes was wrestling with a twig [illegible] in the tree at the poit where she deposited the twig yesterday, but I still doubt if this is the final location. Neither bird pays the slightest attention to me, except that Brown-eyes has several times responded to my whistling by bursting into song when she had previously been silent. Both birds are climbing about in the old oak and flitting from one tree to another and all together having a good, irresponsible time. Brown-eyes and a gold-finch delivered a joit concert from the top of the old oak--a some- what mixed affair, as they sat about six feet apart and each performed according to its kind. Brown-eyes put on the loud pedal. Green-eyes was in a small tuft of branches out on the end of an otherwise bare branch of the same tree and seemed to be eating something on the leaves. Robins, purple finches, gold finches, humming birds, Gambel sparrows, wren-tits, spotted and California towhees were flying in and out of the old oak and the glade below, calling and singing during the few minutes I watched, making animated scene. Brown-eyes ended her part of th concert by darting off horizontally from her high perch, then banking her wings and flying vertically upward about ten feet where she seemed to catch some insect. She and her mate rustled about in the thick foliage of the glade where I could not see them and then all was quiet. I went to investigate and found Brown-eyes surrounded by [illegible] a dense swarm of Argentine ants whose nest she was tearing to pieces, apparently eating larvae, although I could not tell. When they crawled up her legs she became quite fidgety, stamping her feet and showing distinct evidence of discomfort, finally decamping in a hurry. At 11:05 the birds were not in sight. After whistling and calling near the glade I was answered by snatches of full song I have previously noted that she would not sing there.