Western House Martin
Delichon urbicum
When to look
Records by month. January, 11,067 records. February, 24,252 records. March, 65,042 records. April, 229,867 records. May, 532,561 records. June, 344,562 records. July, 317,524 records. August, 321,677 records. September, 186,697 records. October, 35,468 records. November, 6,866 records. December, 5,786 records.
Occurrence data from GBIF (incl. the eBird Observation Dataset, © Cornell Lab of Ornithology, CC BY 4.0). Descriptive, not predictive.
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