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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, 1 kilometer traveling checklist at the optimal time of day for each species.
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Breeding season
17日 5月 - 17日 8月
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Non-breeding season
7日 12月 - 22日 3月
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Pre-breeding migratory season
29日 3月 - 10日 5月
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Post-breeding migratory season
24日 8月 - 30日 11月
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Seasons timeline
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