R & E: Arrives later than Northern Rough-winged Swallow, with birds reaching southern Missouri at the beginning of the second week in April and about a week later in the north. Peak is early to mid-May.
March 31, 1990 - Earliest spring record
(1); Lake Taneycomo, Taney Co.; Pat Mahnkey, Jim Haw; R & E, BB 57:139.
April 4, 1981 - 2nd earliest spring record
(6); Lake Contrary, Buchanan Co.; Floyd Lawhon; R & E.
May 14, 1967 - High count
(2000); Squaw Creek NWR, Holt Co.; Floyd Lawhon; R & E.
May 15, 1966 - Highest single day count
(2500); Squaw Creek NWR, Holt Co.; Floyd Lawhon; R & E.
May 17, 1980 - Southern Missouri nesting colony (away from Mississippi River valley)
(500+); Bonne Terre Marsh, St. Francois Co.; Bill Reeves; R & E.
May 26, 1968
(Male); Specimen (NWMSU, DAE 1921); near Bigelow, Holt Co.; David Easterla; R & E.
R & E: A local colonial breeder along eroded banks fo almost all rivers north of and including the Missouri River. In addition, occurs local along the entire Mississippi River drainage. Colonies are much more spotty in the Ozarks and Osage Plains. It probably has increased as a breeder since presettlement, as a result of an increase in nesting sites, especially roadside cuts.
June 22, 1982 - Southern Missouri nesting colony (away from Mississippi River valley)
(350 nests); Willard, Greene Co.; J. Horton; R & E, BB 49:18.
July 29, 1973 - 2nd highest single day count
(2000+, possibly includes migrants); Squaw Creek NWR, Holt Co.; Mark Robbins; R & E.
R & E: The autumn buildup in numbers not only occurs earlier than that of the other swallow species (Except Purple Martin), but it is composed of lesser numbers than the other species. Peak occurs from mid-August through early September. Very few birds are seen
after the third week of September.
Aug. 11, 1946 - High count
(1000); Sugar Lake, Buchanan/Platte Co's; H. Hedges; R & E, BB 13:2.
Sept. 1, 1963 - High count
(1000); Squaw Creek NWR, Holt Co.; Floyd Lawhon; R & E.
Oct. 7, 1974 - Latest fall record
(5); St. Joseph, Buchanan Co.; Floyd Lawhon; R & E.
Note: Any significant observations since R & E will be added at a later time.