Wilson has justly observed that the habits of this lovely bird are those of a Tit or a Creeper. I have usually observed it creeping about the twigs of trees, or among the blossoms. The first I met with was thus engaged, creeping in and out, and clinging to the beautiful and fragrant flowers that grew in profuse spikes from the summit of a papaw-tree. It is one of the earliest of our visitors from the north, for this was on the 16th of August; and it remains until April among the sunny glades of our magnificent island. The stomach of such as I have examined was large, and contained caterpillars of various sizes and species. An individual in March, which I proved by dissection to be a female, did not differ in intensity of colouring, or any other appreciable respect, from the male. The eggs in the ovary at that season, were distinguishable, but minute. YELLOW RED-POLL WARBLER.[38] _Sylvicola æstiva._ _Sylvia æstiva et petechia_, +Lath.+—Aud. pl. 95. _Sylvia citrinella et petechia_, +Wils.+ _Sylvia Childrenii_ (_young_,) Aud. pl. 35. _Sylvicola æstiva_, +Sw.+ [38] Length 5¹⁄₄ inches, expanse 8¹⁄₁₀, flexure 2⁶⁄₁₀, tail 2¹⁄₁₀, rictus ⁶⁄₁₀, tarsus ⁹⁄₁₀, middle toe ¹⁄₂. Of this very beautiful species, which has been described under so many names, I have specimens in much diversity of plumage, from that in which the chestnut crown, and spots of the breast are deep and conspicuous, to that in which there is no trace either of the one or the other. There is little in their manners to distinguish them from others of this pretty family. They arrive in Jamaica in September, and depart in April; and, like their fellows, hop about low trees, feeding on small insects. In March, I observed it rather numerous, hopping about the _Cleome pentaphylla_, and other low shrubs which were then in flower, on the banks of the new cut of the Rio Cobre, not half a mile from the sea of Kingston Harbour. Whenever I have seen it, it has been very near the sea. AURORA WARBLER.[39] _Sylvicola eoa._—+Mihi.+