Recent Birds at Rio Bosque
Water deliveries to the park from the Roberto Bustamante Wastewater Treatment Plant ended on 2 February. The wetland cells are now dry, as is over 70% the old river channel.
Summer residents are starting to arrive. The first Swainson's Hawks and a Western Kingbird appeared 7 April; the first Black-chinned Hummingbird, 14 April; the first Yellow-breasted Chats, 17 April; the first Lesser Nighthawk, 18 April.
Our pair of White-tailed Kites, first seen 25 May 2024, has now been present for over 10 months..
Burrowing Owl activity has been slow, but owls have been seen in recent weeks at 3 different burrow sites.
You can download the current field checklist for the park here.
You can view recent Rio Bosque bird observations posted to eBird here.
| Species | Date | Number |
| Lesser Nighthawk | 18 Apr | 1 |
| White-tailed Kite | 18 Apr | 2 |
| Cooper's Hawk | 18 Apr | 1 |
| Burrowing Owl | 18 Apr | 1 |
| N. Rough-winged Swallow | 18 Apr | 3 |
| Crissal Thrasher | 18 Apr | 1 |
| Black-necked Stilt | 17 Apr | 3 |
| Long-billed Curlew | 17 Apr | 1 |
| Loggerhead Shrike | 17 Apr | 2 |
| Yellow-breasted Chat | 17 Apr | 2 |
| Green Heron | 15 Apr | 1 |
| Northern Cardinal | 11 Apr | 1 |
| Swainson's Hawk | 9 Apr | 1 |
| White-faced Ibis | 6 Apr | 35 |
| American Barn Owl | 6 Apr | 1 |
| Sharp-shinned Hawk | 6 Apr | 1 |
| Great Horned Owl | 3 Apr | 1 |
| Vesper Sparrow | 31 Mar | 1 |
| Ring-billed Gull | 26 Mar | 101 |
| Black-crowned Night-Heron | 20 Mar | 1 |
| Lincoln's Sparrow | 20 Mar | 1 |
| Tree Swallow | 19 Mar | 2 |
