Vol 'i9^ XV ] Harlow, Breeding Birds of Penna. and N. J. 147 



throughout New Jersey and Pennsylvania but becomes local in the north- 

 ern mountainous portion of the latter state. Data on eighty-four nests 

 give: average set,, 4 (3-5) ; average date, New Jersey (twelve nests) May 22; 

 southern Pennsylvania (sixty-two nests) May 26; northern Pennsylvania 

 (ten nests), June 2. 



165. Hylocichla fuscescens fuscescens. Veery. — I have found 

 the Veery breeding regularly in Sullivan, Wyoming, Pike, Wayne and 

 Monroe Counties, Pennsylvania, while west of the Alleghanies it is much 

 more abundant and I have summer records from the following counties: 

 Bedford, Fayette, Clarion, Blair, Venango, Warren and Erie. I have had 

 no experience in northern New Jersey where it also nests. Data on five 

 nests give: average set 4 (sometimes 3); average date, June 1 (May 26- 

 June 29). 



166. Hylocichla ustulata swainsonii. Olive-backed Thrush. — I 

 have found this thrush summering in Warren, Pike, and Monroe Counties, 

 Pennsylvania. A set of four eggs from the last county taken, June 8, 1910, 

 is in my collection. 



167. Hylocichla guttata pallasii. Hermit Thrush. — I have found 

 the Hermit in summer in Warren, Monroe, Sullivan, Pike and Wayne Coun- 

 ties, Pennsylvania. Data on five nests give: average set, 4 (sometimes 3); 

 average date, June 10 (May 30- June 23). 



168. Planesticus migratorius migratorius. Robin. — Breeds 

 abundantly throughout both states. Data on 346 nests give: average set, 

 4 (2-5); average date, for first sets April 20 (earliest, April 18); for second 

 sets May 25; third sets July 4. In fixing dates for later sets four pairs 

 were studied which raised three broods annually on porches near my home 

 at State College, for three years in succession. 



169. Sialia sialis sialis. Bluebird. — Breeds commonly throughout 

 both states, being least abundant in the neighborhood of Philadelphia and 

 in the wilder, northern mountainous section. Data on sixty-nine nests give: 

 average set, 5 (4-6); average date, for first sets, April 15, earliest, April 4; 

 for second sets, June 25, latest, August 2. 



