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78 THE CONDOR Vol. III their nesting habits, so I nearly wreck- ed my first set which I came upon by chance. We were walking along slow- ly and upon passing a decayed stump I struck idly at a rough opening in the side with my machete. It was a rude hole which looked as if it tnight have served a woodpecker sometime in the remote past, so my surprise may be imagined. The whole front of the ex- cavation crumbled away under the blow revealing the two pearly white eggs on the verge of the nest. The bird had not been seen to leave the nest, so I replaced the eggs careful- ly and fitted back the pieces which had been struck from the front of the nest, holding them in place by a piece. of vine which I wrapped about the stump several times. A few days later by ap- proachingthe nest cautiously the bird flushed, proving to be Trogon caligsalus. She had again settled down in her wrecked home as though nothing had happened. This was April 25 , ?898; eggs fresh. Another set of two eggs was found May 29, ?898 with embryos begun, near the edge of the woods in a decayed stump fifteen feet up. Another set of two eggs on May ?2, i899, incubation fresh; opening to nest, eight feet up. The nest is always a rough hollow 'in the most decayed or crumbling, punky stumps. The hollow is usually six or eight inches in diameter and is but a few inches lower than the opening, with no lining. The Mexican name of the trogon is Uabo, which sounds a little like his call, consisting of two notes, the first a little higher than the second. It may be imitated by a low whistle, and sounds but little lower when one is ?5o yards from the bird than when under the tree from which the sound proceeds. When one is near to the bird, the sound seems to come first from one di- rection and then another, and the bird may readily be thought to be fifty .feet away instead of at hand. The trogon's nest was the last find of the day, and at about 2 o'clock the inevitable thunder- storm came up, sending us back to the plantation, a water-soaked party of col- lectors. SOhO of Zonotrichia coronata. N REPLY to Mr. Lyman Belding's query in T? CONDOR (Vol. 3, No. 2.), I can state positively that the Golden-crowned Sparrow (Zonotrichia coronata) is not an altogether silent bird in this neighborhood during its winter residence. Its song, if it may be digni- fied by such a title, consists of three notes given in a descending scale with intervals of thirds, or to express it differ- ently sol, mi, do. The sound is that of a very high whistle, in fact so high that in imitating the bird it is necessary for me to make it with the tongue against the roof of the mouth, the lips apart. The notes are given very softly and yet are penetrating. I have been accustomed to hearing this song since my boyhood, and yet until quite recently ascribed it to Gam- bel's Sparrow (?. leucophrys gambeli.). One evening at the California Academy of Sciences Mr. Chas. A. Keeler imitated this song and claimed that it was that of Z. coronata. A discussion on this point led me to observe these two species very closely during the past winter, and I now acknowledge that Mr. Keeler was right and I wrong. The song is given when the bird is either on the top of a low bush or with- in the bush near the outside. As the two species invariably flock together during their residence in this neighbor- hood, and as it very difficult to dis- tinguish the ilmnature gainbell from coronala at any distance, when both kinds are banded together, especially when partially hidden by foliage, a great deal of watching was necessary to enable me to establish the identity of the songster. Many an attempt failed through my not being able even to dis- cover which individual of the flt?ck was