_Food._--Howell (1932) reports: "Examination of the stomachs of four birds taken in Florida in February showed the contents to consist almost wholly of insects and spiders, with a few bud scales. Hymenoptera (ants, bees and wasps) composed the largest item, amounting in two instances to approximately half the total contents. Other insects taken in smaller quantities were lepidopterous larvae, fly larvae, beetles, weevils, scale insects, bugs, and grouse locusts. Spiders were found in three stomachs, and amounted to about 20 per cent of the total food." PACULA PITIAYUMI NIGRILORA (Coues) SENNETT'S OLIVE-BACKED WARBLER HABITS This northern race of a wide-ranging species is represented by a number of allied races in Central and South America. From its range in northeastern Mexico it rarely crosses our border into the valley of the lower Rio Grande in southeastern Texas. For its introduction into our fauna and for most of our knowledge of its habits we are indebted to George B. Sennett (1878 and 1879) and to Dr. James C. Merrill (1878). The discovery of the bird in Texas in 1877 is thus described by Mr. Sennett: On April 20th, soon after reaching Hidalgo, I was directed up the river some four miles by road, and there shot the first three specimens of this new species. On May 3d, another was shot among the mesquite timber of the old resaca, within a mile of town. On May 8th, another was shot in a dense forest about half a mile from where the first three were obtained. Several more were seen; in fact, they were more abundant than any other Warbler. * * * All of the specimens obtained are males, and I remember of seeing none in pairs. They were seen usually in little groups of three or four. They are by no means shy, but frequenting, as they do, the woods, cannot be readily seen. He visited the locality again the following year and says in his report (1879): It is truly a bird of the forest, and delights to be in the upper branches of the tallest trees. The song of the male is almost continuous as it flies about, and is so clear that it can be heard at a long distance and readily distinguished from all other birds. By its notes we could locate the bird, and this accounts for our securing so many more males than females. Were it not for its song, I doubt if we would have taken many, owing to their diminutive size and habit of frequenting the tops of the forest-trees. As it was, by only taking such as came in our way, we shot over twenty specimens, and could have taken any number more had we set out for them alone. In feeding habits I could see nothing different from our familiar Blue Yellow-back, _P. americana_.