ON'l'ARlO 



the time they crossed the southern boundary till they reached their 

 northern limits. But the most interesting facts relating to the subject 

 were brought forward to show the great destruction which takes 

 place among the birds by flying against the lighthouses. It is known 

 that migrations take place mostly during the night, the day being 

 spent in seeking rest and refreshment. The smaller birds do not 

 like to cross the lakes, but are found in great numbers flitting along 

 the shores, or following the course of the larger rivers, the Missis- 

 sippi valleyinthis way becoming the great highway of the travellers 

 during the season of migration. By looking at the map of the 

 State of Michigan, it will be observed that northern bound birds 

 entermg that state from the south, finding themselves hemmed in 

 between Lakes Michigan and Huron, and naturally gather into a 

 cid dc sac to cross at the Straits of Mackinac, which they no doubt 

 do in vast numbers. " In lake Huron, at the eastern end of the 

 straits, and midway between the shores, lies Spectacle Reef, on 

 which is erected a lighthouse eighty-six feet above the water level. 

 The light is of the second order, and shows alternately a red and 

 white flash every 29 seconds, which is seen in clear weather at a 

 distance of sixteen and a half miles. The lighthouse is surrounded 

 by a wooden platform 85 feet square. The keeper of the light, Mr. 

 William Marshall, has been there seven years, and states that during 

 the season of migration, on misty and rainy nights large numbers of 

 birds strike and are killed. On one morning he picked up one hun- 

 dred and fifty on the pier surrounding the tower, and thinks that ten 

 times that number fell outside the platform into the water. A 

 package of these, which were forwarded for identification, showed 

 them to be such birds as we are accustomed to see passing north 

 during the spring. A similar report furnished by the keeper of the 

 lighthouse at Sombrero Key, Florida Reefs, shows that as many as 

 200 sometimes strike during one night." The circulars of instruc- 

 tions and tabular work are again in the hands of observers for the 

 spring work of 1885, and farther south many entries have no doubt 

 already been made. Profiting by the experience of last year, the 

 work has now been better systemized, and more information will 

 be gained with less trouble. In the course of a year or two we will 

 no doubt be able to say where all the species spend the winter, 

 when they leave their winter quarters for the north, at what rate they 



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