卫星图
期望数量
Relative abundance is depicted for each season along a color gradient from a light color indicating lower relative abundance to a dark color indicating a higher relative abundance. Relative abundance is the estimated average count of individuals detected by an eBirder during a 1 hour, 2 kilometer traveling checklist at the optimal time of day for each species.
了解更多Breeding Season
31日 5月 - 19日 7月
0.617.219
Pre-breeding Migratory Season
5日 4月 - 24日 5月
0.617.219
Post-breeding Migratory Season
26日 7月 - 11日 10月
0.617.219
Unavailable Seasons: Non-breeding
Layer Opacity
Seasons Timeline
123456789111
Regional Stats
Custom Shapes Stats
选项
No Shapes Drawn on Map
Draw a shape on the map to generate a summary table or chart for that custom area of interest.