V ° 1 i9'o6^ 111 ] Beyer, Allison, Kopman, Birds of Louisiana. 15 



Antrostomus carolinus, common as summer visitor in heavy 

 growths in pine or upland regions, is rare in the low fertile alluvial 

 of the southeast. 



The distribution of the Passeres will be more readily compre- 

 hended if considered in relation to the distribution of pine and 

 hardwood growths. 



Unbroken tracts of pine forest normally attract none but the 

 following forms: Residents — Corvus, Sturnella, Spizella socialis, 

 Peuccea, Lanius, Dendroica vigorsii, Sitta, and Sialia; summer 

 visitors — Piranga rubra; winter visitors — Astragali mm, Spinas', 

 Pooeeetes, Passerculus, Ammodramus henslowiil (at least in long- 

 leaf pine flats), Dendroica coronata, Dendroica palmarum and Mer- 

 vla; transients — Dendroica virens. 



In point of species, omitting the few important exceptions already 

 noted, the resident, summer visitor, and winter visitor classes of 

 bird life in the State are mainly the same in all broad-leafed growths, 

 whether forming unbroken forests as in parts of the east and south- 

 east, or whether occurring as diversifications of the pine regions. 



In point of comparative abundance of various species, however, 

 there are great differences to be found in the several sections, as 

 noted earlier in this resume. 



The occurrence of transients, as shown before, is most limited 

 in the fertile alluvial of the southeast. The extremity of this con- 

 dition is found in the typical swamps of cypress, red maple, tupelo, 

 elm, and ash. In spring, especially, such country is practically 

 unvisited by transients, except of the few species that breed there. 

 Where the land and the growth have both been diversified by 

 agriculture or through other means, the passage of transients is 

 much more noticeable in this region. Furthermore, in both spring 

 and fall, there are a few purely transient species that are found in 

 striking abundance. 



Attention is merely called again to these interesting conditions, 

 which cannot be thoroughly understood without study of the anno- 

 tated list to follow. 



(To be continued.) 



