Peaking in early May (week 18)
Species whose records cluster in early May 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.
Yellow trout lily Erythronium americanum of its 78 records
fall in these three weeks Plants
Hookedspur violet Viola adunca of its 23 records
fall in these three weeks Plants
Siberian squill Scilla siberica of its 21 records
fall in these three weeks Plants
Arctic Butterbur Petasites frigidus of its 37 records
fall in these three weeks Plants
Round-lobed hepatica Hepatica americana of its 84 records
fall in these three weeks Plants
Wood anemone Anemonoides quinquefolia of its 126 records
fall in these three weeks Plants
Largeflower bellwort Uvularia grandiflora of its 138 records
fall in these three weeks Plants
Barn Swallow Hirundo rustica of its 20 records
fall in these three weeks Birds
Eastern leatherwood Dirca palustris of its 43 records
fall in these three weeks Plants
Bloodroot Sanguinaria canadensis of its 89 records
fall in these three weeks Plants
Squirrel corn Dicentra canadensis of its 21 records
fall in these three weeks Plants
Common Grackle Quiscalus quiscula of its 31 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. 107 species were considered.