Here is the Conowingo Dam report for Monday, December 29, 1997. (This was part of the Rock Run Christmas Bird Count.) Time: 0700-1600 Weather: cloudy, AM low 25, PM high 40 Power Generation: Full, all day Observers: Gene Scarpulla, Ralph Cullison, and Lou Nielsen Pied-billed Grebe 8 DOUBLE-CRESTED COMORANT 4 (immature) Great Blue Heron 100 Black-crowned Night-Heron 1 Canada Goose 25 American Black Duck 58 Mallard 6 Common Goldeneye 2 (female) Common Merganser 908 (flocks in flight all day) Red-breasted Merganser 4 Black Vulture 1 Turkey Vulture 1 Bald Eagle 15 (9 adult, 6 immature) Red-tailed Hawk 1 PEREGRINE FALCON 1 (immature, chasing Rock Doves all day) Ring-billed Gull 20,000 (highest numbers sunrise & sunset) Herring Gull 200 THAYER'S GULL 1 (adult winter) Lesser Black-backed Gull 1 (adult winter) Great Black-backed Gull 200 Rock Dove 326 Red-bellied Woodpecker 3 Downy Woodpecker 3 American Crow 4 crow sp. 3 Carolina Chickadee 5 Tufted Titmouse 2 Brown Creeper 2 Carolina Wren 3 Eastern Bluebird 6 European Starling 3 Northern Cardinal 7 Song Sparrow 2 White-throated Sparrow 35 Dark-eyed Junco 25 blackbird sp. 5000 American Goldfinch 4