328 Rockwell and Wetmore, Birds of Golden, Colorado. [jiily 



not observed here until July 25, when about a dozen males were found at the 

 foot of the eastern slope of Lookout Mountain, below Dead Man's Gulch. 

 They were apparently located here as they kept in the same locality, and 

 as only one female was seen we took them to be incubating. On the plains 

 country to the east this species was common from May 12 on and was 

 breeding June 13, but the Golden birds appeared to have arrived later. On 

 August 1 we found loose flocks feeding over the top of South Table Moun- 

 tain which had evidently come up from the warmer levels below. These 

 were moulting rather badly and were very wild. The birds disappeared 

 entirely by the last of August though they lingered a little later in the 

 plains country. 



75. Piranga ludoviciana. Western Tanager. — A male seen 

 August 8 among the pines on Lookout Mountain was the first one noted 

 here. On October 2 we took two among the cottonwoods on Clear Creek 

 and saw several others. They were in good plumage and were exceedingly 

 fat. This species should be of regular occurrence during migrations. 



76. Petrochelidon lunifrons lunifrons. Cliff Swallow. — This 

 species arrived May 12 and was of transient occurrence during the migra- 

 tion. A few pairs nested under the eaves of a house near the School of 

 Mines in Golden and were seen flying over the surrounding country 

 until September 1. 



77. Hirundo erythrogastra. Barn Swallow. — This species first 

 appeared May 16 and was fairly common in the open region around Golden 

 until September 1 . In August they were in small flocks and the old -birds 

 were feeding their young of the second brood. The last seen were noted 

 on Clear Creek October 2. 



78. Tachycineta thalassina lepida. Northern Violet -green 

 Swallow. — First seen May 16 and fairly common then at the base of the 

 foothills. During the first week of June they were seen at 7500 feet and 

 after this were not found again until August 8. Then one or two family 

 parties were found on the top of Lookout Mountain and the adults were 

 feeding the young. Not seen after September 1. 



79. Bombycilla garrula. Bohemian Waxwing. — Found in flocks 

 on Clear Creek during the middle of March and a few noted April 3, but 

 none taken. 



80. Lanius borealis. Northern Shrike. — First seen October 24, 

 and fairly common after that along the creeks and bushy thickets. None 

 were seen during the spring. 



81. Vireosylva gilva swainsoni. Western Warbling Vireo. — 

 One taken May 23 in Chimney Gulch and one or two seen occasionally 

 during the summer along Clear Creek. Last found Spetember 9, during 

 the fall migration. 



82. Vermivora virginiae. Virginia's Warbler. — Common mi- 

 grant and summer resident from the beginning of the foothills up to nearly 

 seven thousand feet. Most abundant at 6000 feet. These birds were 

 first seen May 16 when they were common. The first of June they were 



