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Brewer's Sparrow

Brewer's Sparrow Spizella breweri

Abundance map

Brewer's Sparrow, Abundance map
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Data provided by eBird

Brewer's Sparrow

Spizella breweri

Abundance

This map depicts the seasonally-averaged estimated relative abundance, defined as the expected count on a one-hour, one kilometer eBird Traveling Count conducted at the ideal time of day for detection of that species in a region.  Learn more

Relative abundance
birds per km/hr
Breeding season
Jun 7 - Jul 20
0.2
1.68
24.85
Non-breeding season
Nov 16 - Feb 22
0.2
1.68
24.85
Pre-breeding migratory season
Mar 1 - May 31
0.2
1.68
24.85
Post-breeding migratory season
Jul 27 - Nov 9
0.2
1.68
24.85
Note: Seasonal ranges overlap and are stacked in the order above; view full range in season maps.
Seasons timeline
Learn more