Birds around Denver
Denver, Colorado, United States
Every measure here is worked out per 5 degree square, so this covers the wider area around Denver (35° to 40° latitude, -105° to -100° longitude, about 550 km across), not the city alone. Counts are shares of all birds records in the same weeks, so busier stations do not inflate them (methods).
Arrived in the last four weeks
- Trumpeter Swan around 12 October
- Tundra Swan around 12 October
- Northern Shrike around 12 October
- Gray-crowned Rosy-Finch around 12 October
- Common Loon around 5 October
- Great-tailed Grackle around 5 October
- Barn Owl around 5 October
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 |
|---|---|---|
| House Finch Haemorhous mexicanus | 1,351,340 | 374.2 |
| Blue Jay Cyanocitta cristata | 370,039 | 102.5 |
| Black-billed Magpie Pica hudsonia | 269,455 | 74.6 |
| Red-breasted Nuthatch Sitta canadensis | 224,064 | 62.0 |
| House Sparrow Passer domesticus | 192,875 | 53.4 |
| Black-capped Chickadee Poecile atricapillus | 168,087 | 46.5 |
| Common Grackle Quiscalus quiscula | 138,216 | 38.3 |
| Northern Flicker Colaptes auratus | 108,287 | 30.0 |
| White-crowned Sparrow Zonotrichia leucophrys | 89,031 | 24.7 |
| American Goldfinch Spinus tristis | 75,095 | 20.8 |
| Pygmy Nuthatch Sitta pygmaea | 71,581 | 19.8 |
| Mountain Chickadee Poecile gambeli | 56,802 | 15.7 |
| American Crow Corvus brachyrhynchos | 46,351 | 12.8 |
| Spotted Towhee Pipilo maculatus | 44,803 | 12.4 |
| Lesser Goldfinch Spinus psaltria | 37,411 | 10.4 |
How well this area is covered
Watched in 12 of the last 12 weeks for birds (enough records to count; unwatched weeks say nothing about absence). Active stations here in the last 30 days: 48 BirdWeather. Add a station to fill the gap.