Some county occurrences indicated below may be too imprecise to map above.
County Breakdown: County Name (# occurrences):
Alfalfa (1); Beckham (98); Blaine (17); Caddo (2); Carter (2); Cimarron (39); Comanche (47); Custer (4); Ellis (2); Greer (58); Harmon (11); Harper (1); Kiowa (14); Major (8); Murray (12); Oklahoma (3); Roger Mills (6); Unknown (3); Wagoner (1); Woods (17); Woodward (2);
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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