Supplementary List.
Note.—Owing to the impossibility of determining what additional species are most likely to stray into a city park, the following list has been made to include certain species known to occur in Cook County, Illinois, some of which are of common occurrence in the vicinity of Chicago but have not yet been seen in Lincoln Park by the authors:
Red-throated Loon (Gavin lumme. 11.) Glaucous Gull. (Larus glaucus. 42.) Franklin Gull. (Larus franklinii. 59.) Forster Tern. (Sterna forsteri. 69.) Black Tern. (Hydrochelidon nigra surinamensis. 77.) Shoveller. (Spatula clypeata. 142.) American Scaup Duck. (Aythya marila. 148.) Ring-necked Duck. (Aythya collaris. 150.) Great Blue Heron. (Ardea herodias. 194.) Black-crowned Night Heron. (Nycticorax nycticorax nævius. 202.) King Rail (Rallus elegans. 208.) Virginia Rail. (Rallus virginianus. 212.) Wilson Snipe. (Gallinago delicata. 230.) Pectoral Sandpiper. (Actrodramas maculata. 239.) Least Sandpiper. (Actrodramas minutilla. 242.) Greater Yellow-legs. (Totanus melanoleucus. 254.) Yellow-legs. (Totanus flavipes. 255.) Bartramian Sandpiper. (Bartramia longicauda. 261.) Black-bellied Plover. (Squatarola squatarola. 270.) American Golden Plover. (Charadrius dominicus. 272.) Sharp-shinned Hawk. (Accipiter velox. 332.) Cooper Hawk. (Accipiter cooperi. 333.) Red-tailed Hawk. (Buteo borealis. 337.) Red-shouldered Hawk. (Buteo lineatus. 339.) Broad-winged Hawk. (Buteo platypterus. 343.) American Rough-legged Hawk. (Archibuteo lagopus sancti-johannis. 347a.) Pigeon Hawk. (Falco columbarius. 357.) Short-eared Owl. (Asio accipitrinus. 367.) Barred Owl. (Syrnium varium. 368.) Saw-whet Owl. (Nyctala acadia. 372.) Screech Owl. (Megascops asio. 373.) Acadian Flycatcher. (Empidonax virescens. 465.) Traill Flycatcher. (Empidonax traillii. 466.) Prairie Horned Lark. (Otocoris alpestris praticola. 474b.) Evening Grosbeak. (Hesperiphona vespertina. 514.) Redpoll. (Acanthis linaria. 528.) Snowflake. (Passerina nivalis. 534.) Lapland Longspur. (Calcarius lapponicus. 536.) Grasshopper Sparrow. (Coturniculus savannarum passerinus. 546.) Eave Swallow. (Petrochelidon lunifrons. 612.) Bank Swallow. (Riparia riparia. 616.) Northern Shrike. (Lanius borealis. 621.) White-rumped Shrike. (Lanius ludovicianus excubitorides. 622a.) Philadelphia Vireo. (Vireo philadelphicus. 626.) White-eyed Vireo. (Vireo noveboracensis. 631.) Blue-winged Warbler. (Helminthophila pinus. 641.) Orange-crowned Warbler. (Helminthophila celata. 646.) Water-Thrush. (Seiurus noveboracensis. 675.) American Pipit. (Anthus pensilvanicus. 697.) Short-billed Marsh Wren. (Cistothorus stellaris. 724.) Tufted Titmouse. (Bæolophus bicolor. 731.)