March 12, 1980 C&O Canal, Great Falls Mus.-Lock 16, Maryland. 12-2 p.m.Clr,cold, windy. plus Potomac at lower end Carderock Park, above Cabin John Bridge - 2-2:30p.m. Mallards -40 Black Ducks -3 - Baldpates - 2 L. Scaup - 4 Ring-necked Ducks - 15M, lFimm. Buffleheads - 2 pr. C. Mergansers - 20M, 6Fimms. Ring-billed Gulls - 45-50 Short-bill or Mew Gull - 3 Hairy and Downy Woodpeckers Common and Fish Crows Ruby-crowned Kinglet March 19, 1980, Potomac River, Marina S to below Bell Haven, Alexandria, Va. 12-2p.m. Mallards Ring-billed Gull Redwings Mourning Cloak Black Ducks Mourning Doves C. Grackles Green-winged Teal Flicker C. Goldfinches Wood Duck - 1 pr. Fish Crow common White-thrt Sp. Grea er Scaup Blue Jay Swamp Sparrow-3 Ruddy Duck - 12's Car. Chickadee Song Sp. 12's Coots Tufted Titmouse Gr. Black-back Gull - 12's Mocker Lesser Blk-bk Gull - 1 Starlings Herring Gulls Orange-crown Warbler - 2 Mar. 25, 1980, Potomac River - Summit Turf Farm,Sycamore Ldg, Hughes Hollow Seneca and Violet Locks, Mont. Co. Md. Ovcst, breezy, cool. 7-1030 a.m. Canada Geese - few prs Flicker Carolina Wren Mallards Pileated Wpkr. Mocker Juncos Black Ducks Red-belld Wpkr. Robin Wh-thrt Sp. Blue-wing Teal - 12's Phoebe - 3 diff. E. Bluebird Wh-crown Sp. Baldpate Horned Larks Pipits - 35 Swamp Sp. Lesser Scaup Tree Swallows Starling Lincoln Sp. Wood Ducks-15-20pr. Purple Martins Myrtle Warbler Song Sp. Bufflehead. Blue Jay Meadowlark Turkey Vulture C. Crows Redwings Kestrel Fish Crows Rusty Blackbirds Herring Gull Car. Chickadee C. Grackles Ring-bill Gull Tufted Titmouse Cowbird Winter Wren Cardinal April 19, 1980, Bull Run Regional Park, Va. 1030-1 p.m. Calm, clear, warm. Bluebells! Barred Owl seen by others Veery C. Grackle Spring Beauty! Red-bellied Wpkr. Ruby-crown Kinglet Cardinal Hairy Wpkr. White-eyed Vireo Purple Finch Downy Wpkr. Parula Wa bler House Finch Purple Martin Louisiana Waterthrush C. Goldfinches. Fish Crow April 20, 1980, C&O Widewater to Lock 16, etc. Mont. Co.Md. 530-730a.m. EST.Clear,cold, calm. Canada Goose - 6 Yel-bell.Sapsucker Blue-gray Gnac. E. MeadowLark Mallard 3M Crested Flycatcher Ruby-crown King Redwing Black Duck l Phoebe Goldencrn Kinglet C. Grackle Wood Duck -3 pr. Purple Martin Starling Rusty Blackbird Red-shouldered Hawk Common Crow Solitary Vireo Cowbird Spotted Sandpiper Fish Crow Yel-thrtd Vireo Cardinals -dozensprs. Mourning Dove Blue Jays Wh-eye Vireo House Finches Flicker Car. Chickadee Parula Warbler C. Goldfinch Red-bellied Wprk Tufted Titmouse Cerulean Warbl. Chipping Sp. Pil.Wpkr - 3 chasing each Brown Creeper Myrtle Warb. Song Sp. Hairy Wpkr Carolina Wren Louis.Waterthrush Downy Wpkr. Robin Hooded Warbler