1930. Apr. 16. Vigos' When nest in box completed - no eggs (Mrs. Mead looked for me). W. Flycatcher does not seem to have begun a nest - Have seen no mate yet. At lunch time a Black-headed Grosbeak came into the oak above the drinking fountain - called but did not sing - Warm, sunny. Apr. 17. Warm, sunny till late afternoon - About 8 a.m. I heard a house wren singing with great excitement at the lower N.W. corner of the house. Occasionally he would dart at another wren that was scolding. Gradually they came up to the front of the house and I detected (male House Wren) Vigos' (female) that there were three wrens, one singing, one scolding and one silent (female House Wren). After fifteen minutes of alternate fighting and cooing the male came to the nesting box, the silent bird crept through its honeycrackle to the box, the scolding female (?) hovered near but was driven off by the singing male while he coaxed the silent out to the box. Two manners of singing were very conspicuous though the songs were practically identical. When his attention was directed toward the silent female the song was sweet and little cooing notes were put in between the outbursts; but when his attention was directed to the scolding female he snapped his bill loudly and rapidly between songs. As far as I know this was their first approach to the box - they were certainly not singing there between five and seven a.m. - but may have done so between seven and eight. The only time House I have heard a wren very near the house was on Mar. 29 though they have been singing constantly down toward Canton Road, below us - Permit this G.-C. Sp. here.