VOl i907" IV ] Kopm an, Bird Distribution. 181 



cially noted: Alder Flycatcher, Least Flycatcher, Scarlet Tana- 

 ger, Yellow-throated Vireo, Chestnut-sided Warbler, Blackburnian 

 Warbler, Black-throated Green Warbler, Cerulean Warbler, 

 Prairie Warbler, Redstart, Catbird, Wilson's Thrush and Olive- 

 backed Thrush. Species somewhat less common during migration 

 in the pine flats region are the Indigo Bunting and Tree Swallow. 

 The winter bird life of the pine region is not essentially different 

 from that of the delta region ; the greatest difference appears in the 

 case of the sparrows ; the Chipping Sparrow, which is never found 

 in the delta region, and which is only a casual breeder in the pine 

 flats region, becomes very abundant there in winter; the Song 

 Sparrow, which is almost unknown in the delta region is sparsely 

 distributed in the pine flats region; the Junco is found sparingly 

 in the upper part of the pine flats region; the Savanna, Swamp and 

 White-throated Sparrows are very much less common than in the 

 delta region; the Vesper Sparrow is much commoner; the Pine 

 Siskin, Purple Finch, and White-crowned and Fox Sparrows are 

 about equally rare in both sections. The Palm Warbler is com- 

 moner in the pine region, especially in Mississippi. The Blue- 

 headed Vireo and Orange-crowned Warbler, two species character- 

 istic of the delta region in winter, are almost entirely absent from 

 the pine flats region, perhaps entirely so in the case of the Orange- 

 crowned Warbler. The Brown Creeper, however, is commoner 

 in the pine region. From the nature of the country, Pipits are 

 necessarily less common in the pine flats region. In all other 

 essential respects, the winter bird life of the two sections is identi- 

 cal. It should be added, that among the winter visitors to the pine 

 flats region as among most other elements of its bird population, 

 the deciduous growths attract the greater variety of species. 



