good undersong for about 10 minutes, interrupted only when reaching for worms in my hand. Even then the song would continue right up to the time of opening his bill to take the worm and be resumed as soon as the worm was swallowed. It was full of typical thrasher phrases, but no imitations. His crooked tail feather is now perfectly straight and nearly full length, but there are short outside and underneath feathers only about 2½ inches long at each side of the tail. His coat is very good, but there are 5 or 6 very small new pin-feathers showing at the wrist(?), (lesser wing coverts(?)) At the present time, except for temporary accidental disarrangement of plumage, there is only one permanent external feature by which Brownie and Greenie can be distinguished from each other with absolute certainty in the field, and that is eye color. The usual carriage of the wings is different, but this is sometimes departed from for a few minutes at a time. External sex differences. G's undersong. 11:35. Greenie has been sub-singing almost constantly nine, and has been most friendly, coming out of the bushes to stand in front of me 2 to 6 feet away and go through his exercises. He has the hen imitation and his "broke-er-rear" is much like part of the russet backed thrush song. The r-e-a-r part has the thrush quality and pitch, sounding far away. B'S unusual silence. Brownie came into the glade while I was watering there about 11:20 without making a sound of any kind. I stopped watering, sat in the chair and Brownie jumped up and sat on my ankle, as solemn as an owl, while I handed her worms until she got impatient and dug them out herself. The unusual feature here was that all this time and for several minutes after she uttered no sound of any kind. A few minutes afterward I heard her undersong from the "dormitory tree" (about 40 feet N.W. of the old oak) and Greenie's from the glade. I went to watch Brownie, finding her dozing and occasionally remarking: "To wheat, to wheat, ka-da-a-h", B doses.