Kansas Academy of Science 160. Xema sabini (Sabine). Sabine's Gull. Casual migrant. Only two specimens taken at Humboldt on September 19, 1876, and at Hamilton on October 3, 1909, are known. 161. Sterna forsteri Nuttall. Forster's Tern. Occasional migrant; fairly common locally. Reported only from the eastern half of the state, but should occur in the west as well. 162. Sterna hirundo hirundo Linnaeus. Common Tern. Casual migrant. Two specimens from Kansas are known; one was taken in Anderson county on May 11, 1878, and another at Hamilton on September 2, 1912. There are two sight records from the Missouri side of the Missouri river, near Kansas City. 163. Sterna antillaram antillarum (Lesson). Least Tern. Common summer resident, breeding locally. On July 1, 1936, Otto Tiemeier, of the Kansas University Museum, found five nests on sandbars of the Arkansas river at Coolidge. 164. Hydroprogne caspia imperator (Coues). Caspian Tern. Accidental. Two specimens were taken on the Kansas river, near Lawrence on September 27, 1928. 165. Chlidonias nigra surinamensis (Gmelin). Black Tern. Probably an occasional summer resident; common migrant. 166. Zenaidura macroura carolinensis (Linnaeus). Eastern Mourning Dove. Abundant summer resident; occasional in winter in the south. 167. Zenaidura macroura marginella (Woodhouse). Western Mourning Dove. Abundant summer resident in the west; occasional in the east. Intergrades with carolinensis in the central part of the state. 168. Ectopistes migratorius (Linnaeus). Passenger Pigeon. Formerly an irregular summer resident; now totally extinct. Only a very few specimens from Kansas are in existence. 169. Conuropsis carolinensis ludovicianus (Gmelin). Louisiana Paroquet. Formerly a common resident; now probably totally extinct. 170. Coccyzus americanus americanus (Linnaeus). Yellow-billed Cuckoo. Common summer resident in the east; rare in the west. 171. Coccyzus erythropthalmus (Wilson). Black-billed Cuckoo. Occasional summer resident in eastern Kansas. 172. Geococcyx californianus (Lesson). Road-runner. Resident in southern and southwestern Kansas. Walter Colvin found this bird breeding in Cowley county in 1934. 173. Crotophaga sulcirostris sulcirostris Swainson. Groove-billed Ani. Accidental. A single specimen was taken in Lyon county on November 1, 1904, by a farmer. 174. Tyto alba pratincola (Bonaparte). Barn Owl. Common resident throughout the state. 175. Otus asio naevius (Gmelin). Eastern Screech Owl. Common resident in northeastern Kansas. Limits of range not worked out. 176. Otus asio hasbroucki Ridgway. Hasbrouck's Screech Owl. Resident in southeastern Kansas. Included on the basis of two specimens from Greenwood county, identified by H. C. Oberholzer. 177. Otus asio aiken (Brewster). Aiken's Screech Owl. Common resident in western Kansas. Exact limits of range not worked out. 178. Bubo virginianus virginianus (Gmelin). Great Horned Owl. Common resident in eastern Kansas.