Western House Martin
Delichon urbicum
When to look
Records by month. January, 10,760 records. February, 23,197 records. March, 62,642 records. April, 220,267 records. May, 512,966 records. June, 325,129 records. July, 295,648 records. August, 294,913 records. September, 173,302 records. October, 35,402 records. November, 7,187 records. December, 6,101 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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