286 
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 virginianus 
Bonasa umbellus umbellus 
Lenaidura macroura 
Coccyzus americanus 
Antrostomus vociferus 
LEmpidonax minimus 
LIcterus galbula 
Lipilo erythrophthalmus 
Ammodramus savannarum passerinus 
Ammodramus caudacutus 
Cyanospiza cyanea 
Stelgidopleryx serripennis 
Lanius ludovicianus migrans 
Flelminthophila chrysoptera 
Dendroica aestiva 
Dendroica discolor 
Compsothlypis americana 
Cistothorus palustris 
Galeoscoptes carolinensis 
Harporhynchus rufus 
fly locichla mustelina 
Stalia sialts 
bob-white 
ruffed grouse 
mourning dove 
yellow-billed cuckoo 
whip-poor-will 
least flycatcher 
Baltimore oriole 
towhee 
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. birds that find their 
southern breeding limit in the transition zone of New York range 
widely toward the north. Some of these are: 
Podilymbus podiceps 
Empidonax trailli alnorum 
Carpodacus purpureus 
Vireo solitarius 
LFTelminthophila rubricapilla 
Dendroica caerulescens 
Dendroica pennsylvanica 
Parus atricapillus 
Llylocichla ustulata swainsoni 
LTylocichla 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 
