552 GEOLOGICAL SURVEY OF NEW JERSEY. 



L. ludovicianus, var. excubitorides, Swains. Loggerhead Shrike. 

 White-rumped Shrike. 



Clear ashy blue ; a white superciliary Hue ; black bars on 



sides of head meet across forehead ; no crescent on under eyelid ; 



white below, scarcely dark waved. Length, 8] inches ; tail, 4^ 



inches. Western ; sporadic in northern New York. Scarcely to 



be expected in New Jersey. 



L. ludovicianus, L, Loggerhead Shrike. 



Slate colored above, darker than in preceding ; the rump 

 scarcely paler ; black head stripe not bordered above by hoary. 

 Length, 8J inches ; tail, 4 J inches. Southern ; occasional as far 

 north as Vermont. 



Family VIREOXIDiE. 



VIRBO, Vieill. 



(Vireosylvia, Bonap.) 

 V. olivaceus, L. Red-eyed Flycatcher, or Vireo. 



Bill much as in Lanius ; wings long and pointed; slender 

 build ; no wing bars ; color olive green, with ashy crown, edged 

 with blackish ; a white superciliary line, below which is a dusky 

 streak ; below, olive shaded ; eyes red. Length, 3 J inches ; 

 tail, 2} inches. An energetic songster. 



"Very abundant. Appears in May, and immediately com- 

 mences nidification. Builds generally in birches or maples, high 

 up in the trees. Have generally disappeared by September 15th. 

 Prefers trees to bushes, and being strictly insectivorous, is a most 

 valuable bird." 



V. philadelphicus, Cass, Philadelphia Warbler, or Vireo or Greenlet. 



Dull olive green, becoming ashy on crown ; no black lines on 



head ; a whitish line on eyebrow ; below faintly yellowish, 



fading to white on throat. Length, 4 J inches ; tail, 2^ inches. 



" Scarce." — Jordan. 



" Probably not rare. Author has seen but two specimens. 

 In habits very similar to the V. gUvus. Strictly inoffensive." — 

 [C. C. A.] 



