BirdCast: Live and forecast maps of bird migration over the United States. Dark Site Finder: Find a dark place to see the stars near you.
| BirdCast | Dark Site Finder | |
|---|---|---|
| Category | Environment & Wildlife Maps | Environment & Wildlife Maps |
| Coverage | Contiguous United States | Worldwide, sites mainly in North America |
| Updates | Live / real time | Static archive |
| Data source | NEXRAD weather radar | Satellite night light data |
| Made by | Cornell Lab of Ornithology, Colorado State University and UMass Amherst | Dark Site Finder |
| Price | Free | Free |
| Account | No account needed | No account needed |
| On phones | Works well on phones | Works well on phones |
| Map view | Flat map | Flat map |
| Visits from ColorfulMaps | 0 | 0 |
| Open map | Open map |
What you can do with BirdCast
- Live migration maps from radar
- Three-night migration forecasts
- Local migration dashboards
What you can do with Dark Site Finder
- Light pollution overlay
- Recommended dark sites
- Simple and fast
Summary based on public information. Check each map's website for current features and prices.