Savannah Sparrow

Passerculus sandwichensis

The population size of Savannah Sparrow in the Ring of Fire region was 4.333 (3.308, 5.767) million individuals based on the BAM National Models.

Maps

Mean density (males per ha) is the average of 32 bootstrap based prediction maps.

Density

Mean densities and bootstrap based confidence intervals by land cover type. Density summaries were calculated using post-hoc binning (BAM 2020), we used the 2005 Canadian Land Cover layer.

Download

The following summaries are awailable for download (all species combined):

• Species abundances in the Ring of Fire region (CSV file) with estimates and 90% confidence interval (in million individuals)
• Species densities in land cover classes within the Ring of Fire region (CSV file) with estimates and 90% confidence interval (in males per ha)