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BIRDS OF PENNSYLVANIA. 
Genus THRYOTHORUS Yieillot. 
Thryothorus ludovicianus (Lath.). 
Carolina Wren ; Mocking Wren ; Great Carolina Wren 
Description {Plate 73). 
Bill about as long as head, slender, almost straight, except at tip which is de- 
curved, and obsoletely notched ; wings and tail about equal in length ; wings are 
rounded and tail is nearly even ; maxilla (dried skins) brownish ; mandible paler ; 
legs pale yellowish-brown; above reddish-brown, brightest on rump; throat and 
'line over ej'^e whitish ; rest of lower parts, yellowish-brown (decidedly rusty in 
some individuals and paler in others) becoming darkest on flanks and tibiae ; lower 
tail-coverts whitish and rusty with transverse dusky bars ; middle and greater wing- 
coverts usually have smalt white spots. The brownish wings, tail (above) and upper 
tail-coverts more or less distinctly barred transversely with dusky. 
Length about 6 inches ; extent about 7| ; eyes brownish. 
Habitat. — Eastern United States (rare toward the northern border), west to the 
plains. Rare in southern New England. 
The Carolina, the largest of all our wrens, is a resident, and, although 
reported as occurring in nearly all parts of the state except in the higher 
mountainous regions, the species is much more plentiful in the lower half 
of the state than in the northern half. In some parts of the southeast 
and southwestern sections of Pennsylvania this shy, secretive and gifted 
songster is quite abundant. The Mocking Wren, as many term this 
bird, inhabits almost every locality, but he prefers to dwell in woodland, 
ravines and bushy places in the vicinity of water. He spends much of 
his time about brush piles, old logs and in the dead tops of fallen trees 
in woods. Like the Brown Thrush, or Indigo-bird, he often perches in 
the topmost branch of a tree or bush, and pours forth his loud, varied 
and melodious song. When feeding these birds like a creeper, may 
occasionally be observed circling about trunks of trees collecting beetles, 
larvae and spiders, from the crevices of the rough bark. Often, in winter, 
this species, like the little Winter Wren, comes about houses and can 
be seen hiding in wood-piles or prying into holes and other dark places 
about buildings. The rather bulky nest, of leaves, grasses, feathers, 
moss, etc., is sometimes in the interior of sheds or other outbuildings, 
but usually it constructs its nest in holes in stumps or logs, in secluded 
situations. I once found a nest with young in a hole among roots of a 
tree in the side of a bank along a creek, the nest was situated about 
three feet above the water. The eggs are usually six or seven in num- 
ber. I have seen this bird picking at grapes in the late fall and winter, 
possibly he sometimes eats small fruits. 
