APPENDIX V 475 
123. FALco RUSTICOLUS OBSOLETUS. Black gyrfalcon. 
Common permanent resident. 
124. FALCO PEREGRINUS ANATUM. Duck-hawk. 
Common summer resident. 
125. Fatco cotuMBARIus. Pigeon-hawk. 
Common summer resident. 
126. FaLco spARVERIUS. American sparrow-hawk. 
Rare summer visitor. 
127. PANDION HALIAETUS CAROLINENSIS. American osprey. 
Common summer resident in south. 
128. Asio AccIPITRINUS. Short-eared owl. 
Common summer resident. 
129. SyRNIUM VARIUM. Barred owl. 
Very rare summer visitor in the south. 
130. CRYPTOGLAUX TENGMALMI RICHARDSONI. Richardson’s owl. 
Rare permanent resident. 
131. CryproGLaux AcapIcA. Saw-whet owl. 
Rare summer resident. 
132. Mecascops asto. Screech owl. 
Very rare summer visitor in southern part. 
133. ASIO MAGELLANICUS HETEROCNEMIS. Labrador horned owl. 
Common permanent resident. 
134. NycTEA NYCTEA. Snowy owl. 
Not common permanent resident. 
135. SURNIA ULULA CAPAROCH. American hawk-owl. 
Common permanent resident. 
136. CoccyzUs ERYTHROPHTHALMUs. Black-billed cuckoo. 
Very rare summer visitor in south. 
137. CERYLE ALCYON. Belted kingfisher. 
Common summer resident in southwest. 
138. DrYOBATES VILLOSUS LEUCOMELAS. Northern hairy wood- 
pecker. 
Uncommon summer resident in south. 
139. DRYOBATES PUBESCENS MEDIANUS. Northern downy wood- 
pecker. 
Common permanent resident in southern half. 
140. PicorpEs arcticus. Arctic three-toed woodpecker. 
Common permanent resident north to tree limit. 
141. Picomes AMERICANUS. American three-toed woodpecker. 
Common permanent resident north to tree limit. 
142. CoLAPTES AURATUS LUTEUS. Northern flicker. 
Uncommon summer resident in southern half. 
143. CHORDEILES VIRGINIANUS. Night-hawk. 
Common summer resident in south. 
144. Trocuitus coLtusris. Ruby-throated hummingbird. 
Very rare summer resident. 
