Will Knowlton:
Arctic/Kamchatka Leaf Warbler, Cambria, SLO County, CA
Will Knowlton:
Canada Warbler
Will Knowlton:
Thick-billed Longspur
Will Knowlton:
Buff-breasted Sandpiper, SLO County, CA
Will Knowlton:
Blue-headed Vireo, Pecho Willows, SLO County, CA
Will Knowlton:
White-eyed Vireo, Ocean Campground, SLO County, CA
Will Knowlton:
Blue-winged Warbler
Will Knowlton:
Blue-footed Booby
Will Knowlton:
Blackburnian Warbler
Will Knowlton:
Black-throated Green Warbler, City of SLO, SLO County, CA
Will Knowlton:
Black-throated Blue Warbler, Oceano Campground, SLO County, CA
Will Knowlton:
Vermilion Flycatcher, KCL Campground, Carrizo Plain, SLO County, CA
Will Knowlton:
Northern Waterthrush
Will Knowlton:
Prairie Warbler
Will Knowlton:
Blue-headed Vireo, Pecho Willows, SLO County, CA
Will Knowlton:
Northern Parula
Will Knowlton:
Black-and-white Warbler
Will Knowlton:
Dickcissel, San Luis Obispo, SLO County, CA
Will Knowlton:
Lucy's Warbler, Oceano Campground, SLO County, CA
Will Knowlton:
Blackpoll Warbler, Santa Rosa Creek, Cambria, SLO County, CA
Will Knowlton:
Blackburnian Warbler, Oso Flaco, SLO County, CA
Will Knowlton:
Tennessee Warbler, Cerro Alto, SLO County, CA
Will Knowlton:
Chestnut-sided Warbler, Oceano Campground, SLO County, CA
Will Knowlton:
Palm Warbler, Arroyo de la Cruz, SLO County, CA
Will Knowlton:
Calliope Hummingbird, Templeton, SLO County, CA
Will Knowlton:
Vermilion Flycatcher, KCL Campground, Carrizo Plain, SLO County, CA
Will Knowlton:
Lesser Nighthawk, Carrizo Plain, SLO County, CA
Will Knowlton:
Black-throated Sparrow, Quail Springs, Carrizo Plain, SLO County, CA
Will Knowlton:
Scott's Oriole, southern Carrizo Plain National Monument, SLO County, CA
Will Knowlton:
Scott's Oriole, Quail Springs, Carrizo Plain, SLO County, CA
