Some county occurrences indicated below may be too imprecise to map above.
County Breakdown: County Name (# occurrences):
Beaver (4); Beckham (7); Blaine (6); Bryan (7); Caddo (1); Canadian (5); Carter (34); Cleveland (255); Coal (1); Comanche (105); Creek (2); Custer (1); Ellis (43); Garfield (8); Garvin (16); Grady (2); Grant (4); Greer (31); Harmon (4); Jackson (12); Jefferson (13); Kay (6); Kingfisher (3); Kiowa (41); Lincoln (16); Logan (31); Major (3); Marshall (98); McClain (15); McCurtain (2); Murray (21); Noble (20); Oklahoma (72); Osage (31); Pawnee (9); Payne (209); Pontotoc (3); Pottawatomie (16); Roger Mills (1); Rogers (5); Stephens (33); Texas (2); Tillman (9); Tulsa (16); Unknown (1); Washington (4); Woods (3); Woodward (3);
Chorusing:
Audio recording by Keith Coleman.
Chorusing Phenology: The black outlined dots denote the Julian date (day of the year; 1 January = 1 to 31 December = 365) an observation was made. The thin red line depicts the range of dates between the beginning of the first, and end of the fourth quartile (excluding outliers; Tukey method). The thick light blue bar represents the second and third quartile (interquartile range; the middle 50% of all observations). Only one observation per Julian date is included in the graphs; so a date with multiple observations carries the same weight as a date with only one observation. The vertical bars correspond to the 12 months of the year; January through December.
# Unique Obervations:
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Range:
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Interquartile range:
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