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.
了解更多全年
  00.040.24
Breeding Season
 7日 6月 - 28日 6月
 00.040.24
Non-breeding Season
 11日 10月 - 12日 4月
 00.040.24
Pre-breeding Migratory Season
 19日 4月 - 31日 5月
 00.040.24
Post-breeding Migratory Season
 5日 7月 - 4日 10月
 00.040.24
Seasons Timeline
  123456789111