Recent Birds at Rio Bosque
The irrigation season ended 15 Aug. Now, our only water sources are treated water from the Roberto Bustamante Wastewater Treatment Plant and groundwater from one of our two onsite wells. Our other well is down for maintenance. We hope to see it back in action soon.
On 18 Aug, an adult Yellow-crowned Night Heron was along the old river channel downstream of the Wetland Trailhead.
The park's pair of White-tailed Kites was seen most recently 2 September. Mississippi Kites have not been seen in several weeks.
Burrowing Owls nested this year at 3 different burrow sites within the park.
Northern Cardinals are present in small numbers.
Southbound migrants continue to appear, including a recent Osprey and 2 Western Tanagers.
You can download the current field checklist for the park here.
You can view recent Rio Bosque bird observations posted to eBird .
| Species | Date | Number |
| Burrowing Owl | 5 Sep | 2 |
| Crissal Thrasher | 5 Sep | 1 |
| Green Heron | 4 Sep | 1 |
| Swainson's Hawk | 4 Sep | 1 |
| Blue Grosbeak | 4 Sep | 1 |
| White-tailed Kite | 2 Sep | 2 |
| Lesser Nighthawk | 29 Aug | 1 |
| Neotropic Cormorant | 28 Aug | 1 |
| Black Phoebe | 28 Aug | 1 |
| Yellow-headed Blackbird | 28 Aug | 2 |
| Northern Cardinal | 28 Aug | 1 |
| Black-crowned Night Heron | 26 Aug | 1 |
| Olive-sided Flycatcher | 23 Aug | 1 |
| Sora | 21 Aug | 1 |
| White-faced Ibis | 19 Aug | 18 |
| Yellow-crowned Night Heron | 18 Aug | 1 |
| Mississippi Kite | 14 Aug | 1 |
| Osprey | 13 Aug | 1 |
| Yellow-breasted Chat | 13 Aug | 1 |
| Western Tanager | 12 Aug | 2 |
| Western Warbling-Vireo | 10 Aug | 1 |
| Cooper's Hawk | 8 Aug | 2 |
| Bell's Vireo | 8 Aug | 1 |
| Common Yellowthroat | 6 Aug | 1 |
