Keith Olstad:
Horned Lark, 180th Street Marsh, Vermillion, MN 2008 1
Keith Olstad:
Horned Lark, juvenile, Randolph Industrial Park 9678 1
Keith Olstad:
Tree swallow, Prairie Marsh Farm, Madison, MN 3726
Keith Olstad:
Tree Swallows, adult and juveniles, North Ottawa Impoundment, near Wendell, MN 0567
Keith Olstad:
Tree Swallow; Frontenac State Park, Frontenac, MN 4443
Keith Olstad:
Tree Swallow; Frontenac State Park, Frontenac, MN 4443
Keith Olstad:
Tree Swallow; Frontenac State Park, Frontenac, MN 4443
Keith Olstad:
Cliff Swallow, Cannon River at Randolph 5225
Keith Olstad:
Cliff Swallow, Cannon River at Randolph 5226
Keith Olstad:
Cliff Swallow, Cannon River at Randolph 5224
Keith Olstad:
Cliff Swallow, Cannon River at Randolph 5204
Keith Olstad:
Barn swallow 8334 - 2
Keith Olstad:
Barn swallow 8337
Keith Olstad:
Barn swallow 8438
Keith Olstad:
Barn swallow 4007
Keith Olstad:
Barn Swallow, Wood Lake Nature Center 5300
Keith Olstad:
Barn Swallow, adult & nestlings, Veterans Park, Richfield 5922
Keith Olstad:
Barn Swallow nestlings, Veterans Park, Richfield 5916
Keith Olstad:
Barn Swallow nestlings, Veterans Park, Richfield 5925
Keith Olstad:
Barn Swallow, Old Cedar Avenue Bridge 5271
Keith Olstad:
Barn Swallow, female; Wood Lake Nature Center, Richfield, MN 5102
Keith Olstad:
Barn Swallow; Wood Lake Nature Center, Richfield, MN 5102
Keith Olstad:
Barn Swallow, male; Wood Lake Nature Center, Richfield, MN 5102
Keith Olstad:
Barn Swallow, male; Wood Lake Nature Center, Richfield, MN 5102
Keith Olstad:
Northern Rough-winged Swallow; Frontenac State Park, Frontenac, MN 4389
Keith Olstad:
Northern Rough-winged Swallow; Frontenac State Park, Frontenac, MN 4389