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Common summer resident. Earliest arrival March ( ?) 18, 

 1871 (Stearns) ; usually appears in May ; departs in Septem- 

 ber. Raises 1 brood. Eggs 2, pale olive-brown, thickly and 

 finely spotted with a darker shade of the same ; laid on the 

 ground or on a rock, the last of May. Feeds on insects. 

 Beneficial. Note, a loud rather sharp monosyllable. 



79. Chaetura pelagica (Linn.). 



CHIMNEY SWIFT. CHIMNEY SWALLOW. 



Sooty-brown, paler beneath. Length, 5 inches. 

 Abundant summer resident. Earliest arrival, April 22 ; 

 latest date of departure, Oct. 31 (I. C. Greene). Raises 2 

 broods. Eggs 3-5, white. Nest of twigs, glued together by 

 the bird's saliva, in a chimney. Eggs laid in May and June. 

 Feeds on insects. Very beneficial. Notes, a rapid, rather 

 shrill twitter. 



80. Trochilus colubris Linn. 



RUBY-THROATED HUMMINGBIRD. 



Metallic green; male with a brilliant, ruby-red throat; female with under 

 parts dusky-whitish. Length, 3 inches. 



Common summer resident. Earliest arrival. May 6 ; departs 

 in September. Raises 1 brood. Eggs 2, white. Nest of 

 moss, covered with lichens and lined with fern or thistle-down, 

 saddled on the limb of a tree. Eggs laid in June. Feeds on 

 insects and honey. Beneficial. Male occasionally utters a, 

 sharp chirp. 



81. Tyrannus tyrannus (Linn.). 

 KINGBIRD. 



Above, brownish-black; beneath and tip of tail, white; concealed patc&i 

 on crown, flery-orange. Length, 8 inches. 



Abundant summer resident. Earliest arrival, April 25 ; 



departs in September. Raises 2 broods. Eggs 3-5, cream- 



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