R & E: The initial migrants appear in mid-April, but the bird is not readily encountered until the very end of April or early May, rarely are more than 1 or 2 birds encountered together.
April 1, 1988 - Earliest spring record and southern MO record
(1); Duck Creek CA, Bollinger, Stoddard and Wayne Co's.; Bill Reeves; R & E, BB 55:86.
April 11, 1965 - Earliest central MO spring record
(1); Spanish Lake, St. Louis Co.; Richard Anderson; R & E, BB 32[1-2]:9.
April 11, 1962 - Earliest northern MO spring record
(1); Squaw Creek NWR, Holt Co.; Floyd Lawhon; R & E.
R & E: During the summer season it is relatively common and normally encountered in isolated pairs throughout the state.
July 12, 1936 - Large colony record (1 of 2 known at time of R & E)
(ca. 100 nests); near Dardenne Island on the Missouri River, St. Charles Co.; Wayne Short, S. Jenner, T. Baskett; R & E, BB 3:68.
Summer of 1968 - Large colony record (2 of 2 known at time of R & E)
(ca. 100 nests); within city limits of Puxico, Stoddard Co.; J. Toll R & E, BB 36:15.
R & E: It remains relatively common until at least mid-Sept. Large numbers, however, may regularly pass through the state in early Oct. (indicated by the below Oct. records). After early Oct. there are less frequent observations that usually only involve single birds. By the end of Oct. this species is very rare.
Sept. 7, 1963
(male); Specimen (KU 20217); Jackson Co.; R & E.
Oct. 1-3, 1989 - High count
(50+ heard migrating at night); Taney Co.; Jim Haw; R & E, BB 57:45.
Oct. 3, 1986
(Large number of undetermined numbers heard migrating at night); Lake of the Ozarks, Co. not listed; Pat Mahnkey, Jim Haw et al; R & E.
Oct. 30, 1984 - High count for this late in fall season
(9); Aldrich, Stockton Lake, Polk Co.; Catherine Bonner; R & E, BB 52:27.
Nov. 15, 1979 - 1 of only 2 Nov. records known at time of R & E
(1); Busch CA, St. Charles Co.; m. obs.; R & E, NN 52:4.
Dec. 5, 1978 - 3rd latest fall record
(1); Springfield, Greene Co.; B. Dyer, Catherine Bonner; R & E BB 46:11.
Dec. 1980 - 2nd latest fall record or 1st winter record
(1); CBC record Orchard Farm, St. Charles Co.; R & E.
Dec. 19, 2015 - 3rd winter record
(1); Kendzora CA, Platte Co.; Sherry Leonardo (documentation), Ashley Hunt; 28th Annual MBRC Report, 2015-103.
Dec. 20, 2003 - Latest fall record or 2nd winter record
(1); CBC record; Meramec River, Crawford Co.; Linda Frederick; 17th Annual MBRC Report, 2004-36.
Note: Any significant observations since R & E will be added at a later time.