Illustrations of the Method 



37 



The tent was then pitched and closed; the whole operation 

 lasted longer than usual owing to some difficulty in getting 

 stakes of the right height. Fifteen minutes is usually long 

 enough for this work. 



Fig. 15. Cedar Waxwing standing at inspection : a characteristic pose. 

 Compare Pigs, i and 4. 



From peep-holes the old birds could be seen in the nesting 

 tree, and you began to hear their faint z-e-e-e-e-e-t ! in response 

 to calls from the young. In twenty-four minutes the female 

 was on the bough and fed her brood with red bird cherries by 

 regurgitation. At this point I was obliged to leave the tent and 

 ask some curious boys to keep away, but the mother bird was 

 back in a moment. In a short time the old birds began to alight 

 on the peak of the tent, which was an observatory for them as 



