100 The Wilson Bulletin — No. 71. 



particularly in late winter, considerable s;atberings of them may be 

 found. Thus, I have seen as many as 22 individuals in a small red 

 cedar thicket a half mile north-east of " Mill Hollow." in the Ver- 

 milion quadrangle. 



174. ZameJodia liKloriciaiiu. — Kose-breasted Grosbeak. 



Common from about the first of 'Sl&y until the middle of July, in 

 the borders of woods. The median date of arrival is May 2. The 

 latest record in fall is September 14. 190G, when two immature 

 birds were recorded. The males arrive some days before the fe- 

 males, usually, and when they outnumber the males they become 

 the aggressors in courtship. The males have been found on the 

 nest, during the incubation period, much oftener than have the fe- 

 males. During the breeding period the typical habitat is a shrub- 

 by woods, such as a second growth ten years after the cutting, or 

 a willowy border of a swampy woods. Cedar Point seems to offer 

 several typical habitats, but the birds have been found there only 

 during the spring migrations. While the birds are courting they 

 spend much time in the taller trees within the woods. Both Put- 

 in-Bay and Pelee islands seem to have suitable habitats, but I have 

 not found the Grosbeak on them, possibly l:ecause my visits have 

 been too late in the sununer. 



IT."). J (isscriiiii ri/diiea. — Indigo Bunting. 



Common over the whole region, including the larger islands, in 

 brushy areas. The sand spit is a typical habitat, and here the 

 birds are found in great numbers, nesting in the bushes and shrub- 

 bery. Of course they are not present in the immediate vicinity of 

 pleasure resort grounds. On the mainland they are sure to be 

 found in the brushy and shrubby borders of all woods. Nests are 

 placed in thickets, whether of bushes, briars, or rank weeds. The 

 males sing most during the warmer weather and the warmer parts 

 of the day. The median date of arrival is May G. Tlie bulk ar- 

 rives a few days after the first is seen, and the birds remain com- 

 mon until the end of the third week of Septend)er. INIy latest rec- 

 ord is October 9, 1807. This is one of the species which helps form 

 the great wave of migration in spring. I have not noticed any dis- 

 tinct fall movement of birds from farther north. 



170. ^piza amcricana. — Diekcissel. 



The career of this bird in the region is a chedcered one. In 

 a manuscript of the birds about Oberlin by Messr.*. L. M. McCor- 

 mick and G. D. Wilder, completed in 1S92, its occurrence is given 

 as casual during the previous thirty years. Its capture anywhere 

 was considered worthy of notice. During the sununers of 1894, 

 1895, and 1890. I have noted it as common al)out 01)erlin. None 



