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NEW YORK STATE MUSEUM 



In the bird fauna of the transition zone southern species again pre- 

 dominate in a ratio of more than two to one. Some of the New York 

 birds that find their northern breeding limit in this zone but which have 

 an extensive range to the southward are : 



Colinus virginianns 



Bonasa ninbellns umbellus 



Zenaidicra ?nacroura 



Coccyzus americanus 



Antrosto?nus vociferus 



Pmpidonax minimus 



Icterus galbula 



Pipilo erythrophthahnus 



Ammodramus savannarum passerinus 



Ammodramus caudacutus 



Cyanospiza cyanea 



Stelgidopteryx serripennis 



Lanius ludovicianus migrans 



Helminthophila chrysoptera 



Dendroica aestiva 



Dendroica discolor 



Compsothlypis americana 



Cistothorus palustris 



Galeoscoptes caro linen sis 



Harporhynchus rufus 



Hylocichla mustelina 



Sialia stalls 



bob-white 

 ruffed grouse 

 mourning dove 

 yellow-billed cuckoo 

 whip poor- will 

 least flycatcher 

 Baltimore oriole 

 townee 



grasshopper sparrow 

 sharp-tailed sparrow 

 indigo bunting 

 rough-winged swallow 

 migrant shrike 

 golden-winged warbler 

 yellow warbler 

 prairie warbler 

 parula warbler 

 long-billed marsh wren 

 catbird 



brown thrasher 



woodthrush 



bluebird 



On the other hand only about a dozen of the 

 southern breeding limit in the transition zone 

 widely toward the north. Some of these are : 



birds that find their 

 of New York range 



Podilymbus podiceps 

 Empido?iax traillii alnorum 



Carpodacus purpureus 



Vireo solitarius 

 Helminthophila rubricapilla 

 Dendroica caerulescens 

 Dendroica pennsylvanica 

 Parus atricapillus 

 Hylocichla ustulata swainsoni 

 Hylocichla fuscescens 



pied-billed grebe 

 alder flycatcher 

 purple finch 

 blue headed vireo 

 Nashville warbler 

 black-throated blue warbler 

 chestnut-sided warbler 

 chickadee 

 olive-backed thrush 

 Wilson's thrush 



