Peaking in late April (week 17)
Species whose records cluster in late April in Door County, Wisconsin, measured against how much the county records in the same weeks. This ranks reports, not organisms — it says when people found something worth photographing.
Siberian squill Scilla siberica of its 21 records
fall in these three weeks Plants
Barn Swallow Hirundo rustica of its 20 records
fall in these three weeks Birds
Narrow-headed Marsh Fly Helophilus fasciatus of its 24 records
fall in these three weeks Insects
Eastern leatherwood Dirca palustris of its 43 records
fall in these three weeks Plants
Yellow trout lily Erythronium americanum of its 78 records
fall in these three weeks Plants
Brown Creeper Certhia americana of its 24 records
fall in these three weeks Birds
Blue-spotted Salamander Ambystoma laterale of its 31 records
fall in these three weeks Amphibians
American Goldfinch Spinus tristis of its 32 records
fall in these three weeks Birds
Ranked by the share of a species' own record that falls in this week and the two around it, divided by the share of all county records in the same window. 51 species were considered.