;j-4 The Wilson Bulletin — No. 70. 



where. Sevei'al pairs nest in Oberlin. The proportion of full plum- 

 aged birds to immature plumaged is about one to three, for the 

 males. 



142. Icterus galhula. — Baltimore Oriole. 



Abundant in villages and parks, common in woodland and or- 

 chard elsewhere. It is a common summer l)ird on the larger isl- 

 ands, but scarce in the region of the Lake Laboratory. During the 

 migrations it is decidedly numerous along the sand spit. The me- 

 dian date of arrival is April 20. the earliest being April 14, 1905. 

 The first arrivals are always bright colored males, which sing very 

 little until others have come. My latest fall record is September 

 21, 1906. It is not easy to keep track of the Orioles after they be- 

 gin to molt. I have noticed individual characteristics in the songs, 

 so that it is not difficult to make a fairly accurate count of the 

 birds which inhabit a limited area, like- the Oberlin College Cam- 

 pus. Here we found no less than six pairs breeding three succes- 

 sive seasons. 



14;5. Eiij}li(t(/iix Ciirolhnis. — Rusty Blackbird. 



■ Common in wet woods and about the marshes during both mi- 

 grations. A female was captured at Oak Point February 13, 1897.^ 



'The Birds of Ohio. A Revised Catalogue, 1903, p. 134. 

 This species often flocks with the Red-wing, especially during the 

 early days of migration, but as the season advances it retires to the 

 wet woods or marshes, where its only company is that of occasional 

 Cowbirds. It sings during its entire stay in spring. The median 

 date of spring arrival is March 10, and it has gone north about the 

 tenth of May. It returns about the middle of September and 

 leaves for the south with the first winter storm, usually early in 

 November. It occurs in rather less numbers than any of the other 

 " I)lackbirds." 



144. Qidscaliis (jiiiscalus aeneiix. — Bronzed (irackle. 



Abundant in the vicinity of human habitations during the breed- 

 ing season, seen everywhere on its excursions for food. A few re- 

 main all winter in favorable places. The migrations occur with the 

 opening of spring in late February or early March, and the de- 

 parture of the bulk is coincident with the first winter weather. The 

 summer roosting begins by the first of May and continues as long 

 as the foliage furnishes a cover. Molting begins the last week in 

 June and continues, for the flock, for fully eight weeks. The birds 

 nest in great numbers in cemeteries and in shade trees about 

 dwellings in towns and villages as well as about farm dwellings. 

 Their numbers are becoming so great that the.v make nuisances of 



