Since 2007, members of YAAS have been active participants in raptor surveys in the eastern Central Valley area covering parts of eastern Merced and Madera counties and western Mariposa County. We fondly dubbed these surveys “Raptor Runs”.
On a regular schedule, in accordance with defined survey protocols, we follow prescribed routes and count the number of raptors and note the location, species, and sex of each bird. These data are then provided to ornithologists who have published papers based on the results of the surveys done by YAAS as well as those of other groups and individuals participating in the program.
We have two routes: the Le Grand route which covers parts of eastern Merced and western Mariposa counties and a second route in the eastern Madera County foothills.
Participants are welcome but space is limited. We do the Le Grand route on the first and third Friday of each month, and the Madera route is run on the second and fourth Saturday.
|American Kestrel||Great Horned Owl||Red-shouldered Hawk|
|Bald Eagle||Loggerhead Shrike||Red-tailed Hawk|
|Barn Owl||Merlin||Sharp-shinned Hawk|
|Burrowing Owl||Northern Harrier||Short-eared Owl|
|Cooper’s Hawk||Peregrine Falcon||Swainson’s Hawk|
|Ferruginous Hawk||Prairie Falcon||Turkey Vulture|
|Golden Eagle||Rough-legged Hawk||White-tailed Kite|