1895] MARYLAND ACADEMY OF SCIENCES. 365 



ber 22, '90 (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 aedon (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 w'ere 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, '94, 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 



