Nest of Chestnut-sided Warbler, ilkistratinfi; how the youiifr foster Cowbird destroys 

 the brood. Nest now contains a Cowl)ird, a young Warbler and an egg (p. 225) 



The condition of the Chestnut-sided Warbler's nest two days later. The young 

 Cowbird has ejected the young Warbler, and fills the nest (p. 225) . 



