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.
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0.030.20.45
Breeding Season
12日 4月 - 6日 9月
0.030.20.45
Non-breeding Season
22日 11月 - 15日 2月
0.030.20.45
Pre-breeding Migratory Season
22日 2月 - 5日 4月
0.030.20.45
Post-breeding Migratory Season
13日 9月 - 15日 11月
0.030.20.45
Seasons Timeline
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