Stoddard, on Birds of Southern Wisconsin 
69' 
other spring-fed streams, along which such rare Wisconsin- 
species as Acadian Flycatcher and Louisiana Water-Thrushes 
breed. Blackburnian, Black-throated Green and other warblers 
usually breeding farther north are occasionally seen in sum- 
mer, while Oven-birds, Nashville, Cerulean, Chestnut-sided, and 
Black and White Warblers breed more or less commonly, and 
Blue-winged and Golden-winged Warblers may occasionally be 
seen in mid-summer with their broods. Least Flycatchers, 
Yeeries and Wood Thrushes, and a host of others are common 
breeders. This range is also a natural stronghold of the birds 
of prey. Virginia Deer and Banded Rattlesnakes are abundant. 
East of the Wisconsin River the rolling hills and fertile val- 
leys of Columbia County are attractive to many species. 
The following notes are selected, either for the rarity of the 
species listed, or for some points of special interest : 
Plialacrocorax a. auritus (Double-crested Cormorant). — These 
“ nigger geese,” as they are sometimes called, were common on 
the Wisconsin River when I first arrived, April 9, and reached 
their greatest abundance near the last of the month. They 
frequented certain overhanging trees growing from the river 
bank below Sauk City that were literally “white-washed,” and 
a dozen to twenty birds were to be seen here at almost any 
hour. But by far the greater number frequented Lake Wiscon- 
sin near Merrimac and Okee, where as many as seventy-five 
were seen in one tree. In this dead, partly submerged forest, 
Great Blue Herons had established a colony of about thirty 
nests, and in the same trees, but invariably a few feet lower, 
we counted thirteen cormorant nests on our first visit, April 
10. Although on each nest sat a cormorant, with others on the 
limbs nearby, none of the nests contained eggs at this time, 
though those of the herons mostly contained incomplete sets. 
The greater number of nests were bunched in a few trees, one 
containing seven heron nests and three of the cormorants, and 
another five of heron and three of cormorant. A severe storm 
later destroyed a few heron nests and all but six of those of 
the cormorants. Curiously, though adults were constantly on 
the nests, it was not till May I that we found a complete set 
of the cormorant eggs, a set of four being collected and others 
incomplete, seen. Young, just hatched, were found May 2(>, 
three being collected, and a “pipped” egg hatched in an incu- 
bator. Newly hatched young were winey black above and 
slightly pinkish below, and polished all over as if with stove 
