.= BRANTA BERNICLA. Rare or accidental migrant; an eastern
species seldom coming west; breeds only within the Arctic Circle.

180. =Whistling swan.= OLOR COLUMBIANUS. Migrant; not common; formerly
fairly plentiful; breeds far northward.

181. =Trumpeter swan.= OLOR BUCCINATOR. Rare migrant; not so common as
preceding; breeds from Iowa and Dakota northward.

183. =Roseate spoonbill.= AJAJA AJAJA. Accidental; two instances;
habitat, tropical and subtropical America.

184. =White ibis.= GUARA ALBA. Rare migrant; one taken on plains;
habitat, tropical and subtropical America, coming north as far as Great
Salt Lake and South Dakota.

[185.] =Scarlet ibis.= GUARA RUBRA. Accidental; one specimen taken; a
wonderful record for this tropical species.

186. =Glossy ibis.= PLEGADIS AUTUMNALIS. Accidental; two fine specimens
taken in the State; this is far out of its ordinary tropical range.

187. =White-faced glossy ibis.= PLEGADIS GUARAUNA. Summer visitor; rare;
fairly common in New Mexico and Arizona; sometimes wanders into
Colorado; Aiken found it breeding at San Luis Lakes.

188. =Wood ibis.= TANTALUS LOCULATOR. Rare summer visitor; southern
range.

190. =American bittern.= BOTAURUS LENTIGINOSUS. Common summer resident;
breeds throughout the State, from plains to about 7,000 feet.

191. =Least bittern.= ARDETTA EXILIS. Rare summer visitor; a few records
east of mountains; one specimen seen west of the divide.

194. =Great blue heron.= ARDEA HERODIAS. Summer resident; common in
migration; seldom goes far up in the mountains, though Mr. Aiken found
one at an altitude of 9,000 feet.

196. =American egret.= ARDEA EGRETTA. Rare or accidental; one seen;
general range, the whole of the United States; in winter south to Chili
and Patagonia.

197. =Snowy heron.= ARDEA CANDIDISSIMA. Summer visitor; not known to
breed; the highest altitude is the one taken near Leadville, 10,000
feet.

198. =Reddish egret.= ARDEA RUFESCENS. Rare or accidental; only two
specimens secured; southern range.

202. =Black-crowned night heron.= NYCTICORAX NYCTICORAX NAEVIUS. Summer
resident; not common; local; more plentiful in migration.

203. =Yellow-crowned night heron.= NYCTICORAX VIOLACEUS. Rare summer
visitor; southern species; not known to breed in State.

204. =Whooping crane.= GRUS AMERICANA. Rare migrant; more common east of
Colorado.

205. =Little brown crane.= GRUS CANADENSIS. Migrant; few taken; northern
breeder.

206. =Sand