16 



THE OOLOGigr 



but it was empty and I was not cer- 

 tain whether it was a real nest or one 

 of the dummies constructed by tlie 

 male. On June 5 1 examined this nest 

 again, and it contained four eggs. No 

 female appeared to be interested as I 

 inspected the nest, but males were 

 singing nearby and one particular male 

 was working on a dummy less than 

 a hundred feet away. This occupied 

 nest was partially in view from the 

 road, in strong cat-tails, and was simi- 

 lar to a cocoanut in form and size, 

 with thick walls of soft brownish stems 

 interwoven with fresher greenish ma- 

 terial, lined with down from the cat- 

 tail heads, with the opening in one 

 side. ' 



(To be continued) 



Late in the fall I turned him loose 

 to follow his own instincts. I certain- 

 ly had a great deal of pleasure with 

 him besides learning a good many 

 things about him and his habits. 



Logan I. ETvans. 



"Bill" a Swainson Hawk 

 I saw a large nest in a thorny loc- 

 ust tree up about fifteen feet and on 

 closer examination found two young 

 Swainsons almost ready to leave. So 

 by sailing my hat at them hastened 

 their departure. They didn't fly far 

 and when they lit, in some tall grass, 

 they couldn't rise again. One got 

 away soon after I caught them so 1 

 just had the one in the photo left. It 

 was very interesting to watch it work 

 away at a rabbit or swallow a mouse 

 whole, which he did when he was 

 hungry. But if he had already eaten 

 four or five he always tore them in 

 two. 



Our old cat never tried to steal his 

 food but once, that time she learned a 

 valuable lesson. After he had been 

 with us for about a month 1 made him 

 take a mouse or a rat on the fly. 1 

 would come within the radius of his 

 pocket string and hold a mouse up by 

 the tail and whistle in imitation of 

 his scream and he would fly straight 

 at the mouse. I always gave it a toss, 

 I don't think he ever missed one and 

 I have thrown as high as thirty feet. 



RED-TAIL HAWK EGGS 



March 6, 1903. P. E. Moody, M. D. 

 Detroit, Mich. One heavily marked 

 on large end and one side balance 

 lightly marked. One lightly marked. 



2.52 X 1.86, 2.46 x 1.88. 



May 12, 1901. J. Claire Wood, De- 

 troit, Mich. Two fairly well marked. 



2.40 X 1.86, 2.30 x 1.86. 



April 8, 1904. J. Claire Wood, De- 

 troit, Mich. Two fairly well clouded 

 over the entire surface. 



2.33 X 1.89, 2.35 x 1.92. 



April 24, 1901. J. Warren Jacobs, 

 Waynesburg, Pa. One well clouded 

 with a few heavy marks on small 

 end. One well clouded over the entire 

 surface. 



2.45 X 1.85, 2.93 x 1.87. 



April 16„ 1893. W. H. Spicer, De- 

 troit, Mich. One very heavily marked 

 on large end, balance marked with 

 small spots. One unmarked. 



2.32 X 1.81,, ,2.39 x 1.86. 



April 13, 1902. J. Claire Wood, De- 

 troit, Mich. One well marked. Two 

 slightly marked. 



2.38 x 1.88, 2.38 x 1.87,, 2.32 x 1.89. 



March 26, 1896. Frank C. Willard, 

 Galesburg, 111. Two fairly well mark- 

 ed. One lightly marked. 



2.50 X 1.89, 2.53 x 1.91, 2.45 x 1.91. 



April 4, 1903. Walter C. Wood, De- 

 troit, Mich. Two very heavily spotted 

 over entire surface and one nearly un- 

 marked. 



2.40 X 1.92, 2.31 x 1.92, 2.30 x 1.91. 



March 27, 1907. S. S. Dickey. 

 Waynesburg, Pa. One with a very 

 few marks scattered over the entire 

 surface and one unmarked. 



2.35 X 1.95, 2.34 x 1.91. 



