36 Bird Migration in the Mississippi Valley. 



on March 16, and on the 17th two more. A nest was found on April 9. Jeffer- 

 son- Summer sojourner. On April 4 first saw three, and on the 9th about 

 three or four to the mile. April 10. Quite common; on the llth there was 

 no increase, but a few more on the 12th. 



Olive-sided Flycatcher (C. borealis). St. Louis. Transient. First seen on 

 May 22, and last on the 24th. Jefferson Not seen. 



Wood Pewee (C. virens). St. Louis. Summer sojourner. On May 5 first 

 saw several; calling. Jefferson. Summer sojourner. On May 26 was the 

 first I saw, though I think it came long ago. 



Yellow-bellied Flycatcher (E. flaviventris). St. Louis. Transient. On May 

 14 first saw one bird and again on May 16. Seen also on May 21 and 24. Last 

 on May 26. Jefferson. Transient. First saw one male on May 19. Last one 

 on May 28. 



Acadian Flycatcher (E. Acadicus). St. Louis. Summer sojourner. On May 

 3 many more were seen at old stands. Jefferson. Not seen. 



Traill's Flycatcher (E. pusillus trailli). St. Louis. Summer sojourner. 

 First saw several, and heard them calling on May 5. Jefferson. Not seen. 



Least Flycatcher (E. minimus], St. Louis. Transient. On May 5 first saw 

 one male, which was calling. From May 14 to 18 they were numerous. Jef- 

 ferson. Summer sojourner. First sa~v one on May 7, and on the 8th it was 

 seen several times. May 10. Nearly full numbers, and on the 12th was the 

 height. They are present everywhere and have seemed to increase regularly 

 from the first. May 19. Still the height ; over a hundred seen. June 1. Still 

 decidedly numerous. 



Ruby-throated Humming bird (T. Colubris). St. Louis Summer sojourner. 

 First saw one male on May 11, and on the 14th the first female. May 18. 

 Mating. Jefferson Summer sojourner. First saw one male on May 15. May 

 19. Three seen and two shot with No. 10 shot; not a feather injured. June 

 1 Height of the season. 



Chimney Swift (C. pelasgica). St. Louis Summer sojourner. First seen 

 on April 8. By the 14th they had increased, and on the 18th the bulk of the 

 species was here. Jefferson. Summer sojourner. On May 1 first saw six, 

 which came in the afternoon, and took immediate possession of my chimney. 

 May 4. First flocks have almost gone ; only three or four birds are circling 

 over the city to-day. May 9. Flock of seventeen seen, apparently mi- 

 grants. In the afternoon there were many more and the height of the season. 

 May 12. Migrants have about all gone. 



Whip-poor-will (C. vociferus). St. Louis Summer sojourner. First seen 

 on May 23, but probably came before. Jefferson Summer sojourner. On 

 May 19 first saw one pair, and none heard or seen thereafter. 



Night Hawk (C. popetue). St. Louis Summer sojourner. First seen on 

 May 15, and also on the 16th and 18th, when there were a great many going 

 north ; numerous along the border of wood. Jefferson Summer sojourner. 

 First saw one on May 21, and on the 31st I found fresh eggs. 



Hairy Woodpecker (P. mllosus). Resident at both places. 



Downy Woodpecker (P. pubescens). Resident at both places. 



Yellow-bellied Woodpecker (S. vanus). St. Louis Transient usually. On 

 December 28 saw one in the woods, but no more seen during the remainder 

 of the Winter. The first this Spring were four birds, with no adult male 



