Species · BCR 28 · BBS 2025 Release · 1966–2024
Gray Catbird In Appalachian Mountains
Gray Catbird in Appalachian Mountains has increased: up 46% on the route-weighted index since 1968.
+46%Since 1968
402Routes In Region
58Years
Notable Signals
No notable trend signals for Gray Catbird in Appalachian Mountains. See the full index history below.
Forecast
If the recent trend holds, Gray Catbird in Appalachian Mountains is projected to stay roughly flat through 2029, near 14 (95% range 13–16). A 5-year backtest shows a typical error of ±4.4%, with 100% of held-out values landing inside the 95% band.
-6%Change by 2029
14Projected 2029 index
13–1695% range
±4.4%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 14 | 12 | 16 |
| 2026 | 14 | 12 | 16 |
| 2027 | 14 | 12 | 16 |
| 2028 | 14 | 13 | 16 |
| 2029 | 14 | 13 | 16 |
Routes In Appalachian Mountains
| Pine Gr Mill | PENNSYLVANIA | 66 | 2024 |
| Drehersville 2 | PENNSYLVANIA | 65 | 2024 |
| Schaefferstown 2 | PENNSYLVANIA | 64 | 2024 |
| Kemah Lake | NEW-JERSEY | 63 | 2024 |
| Ramsey | PENNSYLVANIA | 60 | 2023 |
| Williamsport | MARYLAND | 59 | 2024 |
| Finzel | MARYLAND | 59 | 2024 |
| Waller | PENNSYLVANIA | 58 | 2024 |
| Ramseysburg | NEW-JERSEY | 53 | 2024 |
| Hope | NEW-JERSEY | 51 | 1994 |
| Bloomsbury | NEW-JERSEY | 51 | 2024 |
| Wild Creek | PENNSYLVANIA | 48 | 2024 |
| Middletown | PENNSYLVANIA | 47 | 2024 |
| Jennings | MARYLAND | 46 | 2024 |
| Mt Hope | NEW-YORK | 44 | 2010 |
| Dresden | OHIO | 44 | 2024 |
| Dryden | NEW-YORK | 42 | 2024 |
| Millville | PENNSYLVANIA | 42 | 2024 |
| Geeseytown | PENNSYLVANIA | 41 | 2024 |
| Dover | NEW-JERSEY | 39 | 2023 |
| Greentown | PENNSYLVANIA | 39 | 2024 |
| Waterstreet | PENNSYLVANIA | 39 | 2024 |
| Clear Spring | PENNSYLVANIA | 38 | 2024 |
| N Washington | PENNSYLVANIA | 36 | 2024 |
| Betula | PENNSYLVANIA | 36 | 2022 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.