1895] MARYLAND ACADEMY OF SCIENCES. 365 
ber 22, 790 (C. W. Richmond), seen (Robt. Ridgway, Auk, ix, 
307, and Richmond). Possibly it is common in summer in 
parts of western Maryland. On July 4, ’93 (Wholey), about 
one hundred yards from Quir-Auk, on the Blue Ridge Moun- 
tain, a nest of this species was found in a hollow log; in it were 
4 young, which fluttered out, leaving 2 infertile eggs. On the 
same day a specimen was secured near the Blue Mountain 
House. On August 2,’93 (Gray), one was observed near Hagers- 
town, On June 9 and 14, ’95, I noted this species at Vale 
Summit, and on the 11th a pair were seen with a brood of 
young. 
Troglodytes aédon (721). House Wren. 
A common summer resident. This semi-domesticated, wholly 
independent and irrepressibly impudent little bird has been 
noted from April 12 (95, Fisher) to October 10 (’93), on 
which latter date a number were seen at Bright Lights, near 
North Point. Possibly they may arrive earlier than above 
given, for on April 27 (93) a nest was about one-half built, 
and 3 days later another was nearly ready for eggs. The 
earliest date, however, I have found eggs is May 19 (’95), the 
latest July 17 (92), and on August 26 (’94) young birds barely 
out of the nest were seen. Sets are 2 of 3, 3 of 4, 7 of 5, 4 
of 6, and 2 of 7. 
This species often pre-empts the nests of other birds, the 
Downy Woodpecker being the most usual victim. On May 
26, 794, a Carolina Wren’s nest, which I had watched being 
built, held one egg; on June 3 a House Wren was found it it, 
and having added 5 of her own was sitting on them, all 6 
being slightly incubated. As a rule, when the House Wren 
jumps a claim it modifies things to suit itself, but in this case it 
made no changes, the nest being exactly as the Carolina Wren 
had built it. 
Troglodytes hiemalis (722). Winter Wren. 
Common winter resident from September 26 (’94, Resler) to 
May 7 (’93, Blogg, Fisher and F.C. K.). At Washington 
