Greater Prairie Chicken

Tympanuchus cupido

The greater prairie-chicken or pinnated grouse, sometimes called a boomer, is a large bird in the grouse tribe. This North American species was once abundant but has become extremely rare or extirpated over much of its range due to habitat loss, natural disasters, and overhunting. Conservation measures are underway to ensure the sustainability of existing small populations. One of the most famous aspects of these creatures is the mating ritual called booming. Source

Where it is now

In the last 8 weeks this bird was recorded 202 times across 9 areas (each area is a 5 degree square).

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Arrival dates

The week it was first heard regularly in each region, after at least six weeks away. Dates differ from south to north, so a region has a range.

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Figures are effort corrected and come from automatic sound identification, which makes mistakes. How this is measured and how it compares with human observers.