^°^9if ^^] Harlow, Breeding Birds of Center County, Pa. 477 



But two nests have been taken; one May 16, 1910, which held six fresh 

 eggs and one of the Cowbird; and one May 14, 1912, with 7 fresh eggs. 



83. Baeolophus bicolor. Tufted Titmouse — Rare summer resi- 

 dent in the woods along the base of the mountains. 



84. Penthestes atricapillus atricapillus. Black-capped Chick- 

 adee. — Scarce summer resident along the mountain streams. On May 8, 

 1910, a nest was found in Stone Valley containing seven fresh eggs. 



85. Hylocichla mustelina. Wood Thrush.— Rare breeder and 

 apparently limited to the open, damp bottomlands of the mountains. 



86. Hylocichla fuscescens fuscescens. Veery. — Rare breeder in 

 the bottomlands of the mountains. Has been observed twice in the breed- 

 ing season in Stone Valley. 



87. Planesticus migratorius migratorius. Robin. — Very abun- 

 dant breeder in the open country, nesting in orchards and about lawns and 

 estates. Sets are usually completed about May 4, and two broods are 

 raised. 



88. Sialia sialis sialis. Bluebird. — Regular but not very common 

 breeder in the open valleys, nesting most frequently in old orchards. Sets 

 are usually complete about April 20 and two broods are raised. 



Hypothetical List. 



89. Botaurus lentiginosus. Bittern. — Mr. Spencer observed one 

 specimen in June, 1908, along Laurel Run and Mr. White took one of a 

 pair from the Center Furnace Swamp on May 8, 1909. It probably will be 

 found to be a rare breeder. 



90. Ardea herodias herodias. Great Blue Heron. — Has been 

 observed several times in April, and may breed in some sections of the 

 mountains. 



91. Colinus virginianus virginianus. Bob-white. — It has been 

 reported to breed rarely at Boalsburg and Pine Grove, but as yet, I have 

 no corroborative evidence. Several were shot near Pine Grove in October, 



1911. One was singing June 24, 1912, at State College. 



92. Circus hudsonius. Marsh Hawk. — During July, 1911, I saw 

 a bird of this species nearly every day, and again observed one May 6, 



1912. It may breed rarely in the swampy meadows. 



93. Accipiter velox. Sharp-shinned Hawk. — Probably breeds 

 rarely in suitable places in the mountains, but as yet no evidence has been 

 procured. 



94. Buteo lineatus lineatus. Red-shouldered Hawk. — The same 

 remarks apply to this species. 



95. Asio wilsonianus. Long-eared Owl. — This Owl has been taken 

 here in the fall and winter months and may breed rarely. 



