ISO 



Bird - Lore 



throated Green Warblers. The Louisiana Water-Thrush, which is typically 

 an Austral bird, is found in every ravine and is perhaps more abundant than 

 the Black- throated Green or the Bla'^k and White, It seems strange to find 

 this Austral bird nesting in the same ravines with Blackburnian, Canadian, 



THE ORIGINAL CAFETERIA 



The Louisiana Water-Thrush is typically an Upper Austral bird, but finds suitable conditions 



of humidity in all the ravines 



and Magnolia Warblers, Winter Wrens, and Juncos. Temperature alone will 

 hardly explain all the problems of distribution. 



The other Austral Warblers are the Hooded and Cerulean, which are 

 firmly established in the swampy woods at the north end of Cayuga Lake. 

 Their number in these woods during the summer is so out of proportion to 

 the number seen on the migration at the south end of the lake that it seems 

 probable that they come in from the west or even from the Austral territory 

 that lies to the north, along Lake Ontario. With them are associated a num- 

 ber of Golden-winged Warblers, a species never recorded at the south end of 

 Cayuga Lake, but which regularly migrates up the Seneca Lake basin, 20 miles 

 west. This is a strangely restricted migration route for a bird of such wide- 

 spread distribution. 



The Pine and the Northern Parula Warblers, which are typical of the 

 Transition Zone, are uncommon nesters with us for perhaps another reason. 

 The Pine Warblers favor the pitch pines and the Parulas, the Usnea moss, 

 neither of which is abundant. How the Parula adapts itself to the absence of 

 Usnea, we learned for the first time a year ago by finding a nest composed 



