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Door County Phenology

When things are seen, week by week. Built from community-verified iNaturalist observations.

11,032 observations across 14 groups, 2021. Colour scale is fixed across years, but unconfirmed counts are not comparable between them.

Totals by Group

Observations by iconic taxon group, 2021. Both columns are counted whichever setting is active; the unconfirmed column is only added to the calendar above when it is switched on.
Group	Confirmed	Unconfirmed	Peak
Plants	2,598	4,844	late May
Insects	762	614	mid June
Fungi	248	683	mid September
Birds	306	283	late August
Amphibians	80	85	late August
Reptiles	119	45	late June
Spiders	78	58	early August
Mammals	70	22	mid September
Fish	46	4	mid June
Molluscs	20	19	late May
Other Animals	10	15	late May
Protozoans	6	13	early October
Unclassified	3	0	late August
Chromists	0	1	mid September

Unconfirmed identifications are included. These were identified by iNaturalist's computer vision and never confirmed by anyone. Their dates and coordinates are as sound as any other record — better, if anything, since they are overwhelmingly phone captures — but the species names have not been checked, and photo-based identification is weakest exactly where these are most numerous: plants and fungi.

They are also not spread evenly across the years. Community review lags behind new records, so recent years hold far more of them — roughly seven unconfirmed for every confirmed record in 2026, against one for every five in 2017. Comparing one year against another on this setting will mislead you, whatever the colour scale suggests.