183 



throats are much stronger and more active than the young 

 of most other warblers_, so that all four of them were able to 

 stand the crowding and pushing of the young Cowbird. In 

 many instances, especially when nests are located above 

 ground, the little birds that really belong there are crowded 

 out or else suffocated. 



Fig. 157. He started in alarm as he heard the click of the 

 camera shutter. 



My plans for pictures at this nest were whollj' upset. 

 The day before I expected them to leave the nest, I appear- 

 ed ready to do business. The four little Yellow-thro.ats 

 and one large Cowbird were all in the nest but so crowded 

 they scarce could move. The tent was placed in position 

 and the camera carefully focussed. At the last moment I 

 reached out to remove an offending blade of grass th.it 

 ■would have apjjeared out of focus in a picture. Like a flash. 



