Top Birds at Grasslands Reservation, Valhalla in August
relative to other locations within 25 miles of New York City, United States
based on 4 checklists
This page shows the probability of a species appearing on a checklist at Grasslands Reservation, Valhalla in August. The difference in probability relative to other nearby locations is also shown, to highlight which birds are particularly likely to be found (or not found) at this specific location. The chart shows how many distinct species have historically been observed at this location for each month of the year.
| Evidence | Sampling | Score | |||||||
|---|---|---|---|---|---|---|---|---|---|
| # | Links | Species | Media | Years | Birders | Hits | Frequency | Percentile | |
| 1 | European Starling | 0 | 2 | 1 | 2 | 50.0% | 39% | ||
| 2 | Mourning Dove | 0 | 1 | 1 | 1 | 25.0% | 9% | ||
| 3 | House Sparrow | 0 | 1 | 1 | 1 | 25.0% | 10% | ||
| 4 | Double-crested Cormorant | 0 | 1 | 1 | 1 | 25.0% | 19% | ||
| 5 | Canada Goose | 0 | 1 | 1 | 1 | 25.0% | 23% | ||
| 6 | American Crow | 0 | 1 | 1 | 1 | 25.0% | 47% | ||
| 7 | Red-tailed Hawk | 0 | 1 | 1 | 1 | 25.0% | 46% | ||
| 8 | Green Heron | 0 | 1 | 1 | 1 | 25.0% | 52% | ||
| 9 | Black-capped Chickadee | 0 | 1 | 1 | 1 | 25.0% | 47% | ||