MacGillivray's Warbler 463 



Description. — Male in spring — Above olive-green ; the crown, sides 

 of the head, throat and breast slaty-grey, paler on the throat ; a white 

 ring round the eye ; rest of the under-parts yellow, tinged with olive 

 along the flanks ; iris brown, bill dusky-brown, lower mandible paler, 

 legs pale flesh. Length 4-75 ; wing 2-70 ; tail 1-50 ; culmen -45 ; tarsus -75. 



The female has the crown brownish-olive-green and the cheeks, throat 

 and breast brownish-olive ; young birds closely resemble the female. 



Distribution. — Breeding in Manitoba and perhaps in Minnesota, 

 Wisconsin and Michigan ; migrating south along the Atlantic coasts, 

 through the Bahamas to northern South America, returning in spring 

 along the Mississippi Valley. 



In Colorado the Connecticut Warbler is a straggler on migration. 

 It has only been once recorded. Aiken obtained a single male on 

 May 24th, 1899, in a cliunp of willows bordering a water-hole near 

 Limon in Lincoln co. This extends its range many hundred miles 

 west, as it does not appear to have been taken previously at any 

 distance west of the Mississippi River. 



Habits. — So retiring and elusive is this Warbler that 

 it is likely to escape the observation of one unacquainted 

 with it. It haunts the thick undergrowth of swamps, 

 and is only with the greatest difficulty flushed from its 

 hiding-place. The only authentic nest of this species 

 was found by Ernest Seton in Manitoba, June 21st, 

 1883. It was placed on the ground and contained four 

 white, slightly brown-spotted eggs. 



MacGillivray's Warbler. Oporornis tolmiei. 



A.O.U. Checklist no 680 — Colorado Records — Aiken 72, p. 197 

 (Oeothlypis macgillivrayi) ; Trippe 74, p. 232 ; Henshaw 75, p. 205 ; 

 Minot 80, p. 227 ; Drew 81, p. 88 ; 85, p. 15 ; Allen & Brewster 83, p. 

 159 ; Beckham 85, p. 141 ; Morrison 88, p. 72 ; Lowe 94, p. 269 ; 

 McGregor 97, p. 38 ; Cooke 97, pp. 19, 117, 219 ; 04, p. 114 ; Keyser 02, 

 p. 205 ; Henderson 03, p. 237 ; 09, p. 240 ; Warren 06, p. 24 ; Oilman 

 07, p. 194 ; Chapman 07, p. 249 ; Rockwell 08, p. 177. 



Description. — Male in spring — Head all round slaty-blue ; a white 

 mark above and below the eye, and the lores black ; back, wings and 

 tail olive-green ; throat and upper-breast streaked with slaty-blue 

 and slaty-black ; rest of the under-parts yellow, greenish on the flanks ; 

 iris brown, upper mandible dusky brown, lower pale brown, legs light 

 brown. Length 4-30 ; wing 2-50 ; tail 2-25 ; culmen -4 ; tarsus -85. 



