JO The Wilson Bulletin. 



May 19. Visited nest. Both birds present, scolding vig- 

 orously; are becoming accustomed to me, as they approach 

 nearer. 



May 20. Visited nest. One bird on guard on topmost 

 branch of a nearby tree, as usual. Both birds very noisy 

 and approached quite near to me when I examined nest. 



May 2J. Visited nest. Both birds around as usual; 

 bolder than ever; very demonstrative. Both alighted in 

 branches of the spruce a few feet above my head. 



May 22. Visited nest. Birds around as usual. 



May 23. Visited nest. Lo! the two eggs have disap- 

 peared and two young now occupy the nest. Both old 

 birds still bolder, approaching within a few feet of me when 

 I go near the nest. Young have not opened their eyes yet, 

 and are entirely naked, save for a few patches of down. 



May 24. Visited nest. Both birds constantly scolded and 

 fluttered at me. Young have not changed appreciably; their 

 eyes are still closed. 



May 25. When I approached the nest the parent birds be- 

 came bolder than ever. They have now become accustomed 

 to me and take liberties. One struck the brim of my hat 

 with its wings, first hovering just above my head and then 

 descending with quick a movement. Young have not opened 

 their eyes but seem lively, and open their mouths for food 

 when I touch the nest. Not changed much in appearance. 



May 26. Visited nest. Young slightly larger; points of 

 primaries appearing; eyes open; mouths open at slightest 

 movement near nest; old birds demonstrative as usual. 



May 27. Visited nest. Rainy day. Parent bird sitting 

 on young; young larger and feathered tracts further devel- 

 oped since yesterday. 



May 28. Visited nest. Young appreciably larger since 

 yesterday. Primaries and secondaries now good sized "pin" 

 feathers. Feathers of dorsal area fairly well developed. 

 White, fluffy feathers on sides of breast and flanks of consid- 

 erable length. Less down. 



May 30. Visited nest. Further development of young' 



