Frogs and toads around Philadelphia
Philadelphia, Pennsylvania, United States
Every measure here is worked out per 5 degree square, so this covers the wider area around Philadelphia (35° to 40° latitude, -80° to -75° longitude, about 550 km across), not the city alone. Counts are shares of all frogs and toads records in the same weeks, so busier stations do not inflate them (methods).
Arrived in the last four weeks
No frogs and toads arrived here in these weeks last year, as far as the records show.
Expected in the next six weeks
No arrivals expected here in the next six weeks, going by last year.
Dates are last year's first regular records after at least six weeks away, with each species' own uncertainty on its page. Each species page can email you when it turns up.
Most recorded, last eight weeks
| Species | Records | Per 1,000 |
|---|---|---|
| Eastern Narrow-mouthed Toad Gastrophryne carolinensis | 15,815 | 386.5 |
| Spring Peeper Pseudacris crucifer | 10,434 | 255.0 |
| Great Plains Narrow-mouthed Toad Gastrophryne olivacea | 10,187 | 248.9 |
| American Toad Anaxyrus americanus | 1,245 | 30.4 |
| American Bullfrog Lithobates catesbeianus | 1,190 | 29.1 |
| Green Frog Lithobates clamitans | 855 | 20.9 |
| Northern Cricket Frog Acris crepitans | 301 | 7.4 |
| Wood Frog Lithobates sylvaticus | 300 | 7.3 |
| Cope's Gray Tree Frog Dryophytes chrysoscelis | 170 | 4.2 |
| Arizona Toad Anaxyrus microscaphus | 118 | 2.9 |
| Greenhouse Frog Eleutherodactylus planirostris | 107 | 2.6 |
| Houston Toad Anaxyrus houstonensis | 32 | 0.8 |
| Gray Treefrog Dryophytes versicolor | 28 | 0.7 |
| Bird-voiced Treefrog Dryophytes avivoca | 25 | 0.6 |
| Squirrel Treefrog Dryophytes squirellus | 19 | 0.5 |
How well this area is covered
Watched in 12 of the last 12 weeks for frogs and toads (enough records to count; unwatched weeks say nothing about absence). Active stations here in the last 30 days: 587 BirdWeather. Add a station to fill the gap.