TABLE OP CONTENTS. V 



Page. 



96. Falco rusticolus obsoletns Black Gyrfalcon (PI. X, Fig. 1) 286 



97. Falco mexicanus Prairie Falcon (PI. X, Figs. 2, 3) 288 



98. Falco peregriuus anatiim Duck Hawk (PI. X, Figs. 5-7) 292 



99. Falco peregrimis peulei Peale's Falcon 297 



100. Falco columbarius Pigeon Hawk (PI. X, Figs. 4, 8) - 298 



101. Falco columbarius snckley i Black Merlin 302 



102. Falco ricliardsonii Eichardson's Merliu 303 



103. Falco regulus Merliu 304 



104. Falco fusco-cocrulesceus Aplomado Falcon (PI. X, Figs. 9, 10) 306 



105. Falco tinnunculus Kestrel 308 



X06. Falco sparverius American Sparrow Hawk (Pl.X, Figs. 11-10) 309 



107. Falco domiuicensis Cuban Sparrow Hawk 314 



108. Polyborus cberiway Audubon's Caraeara (PI. XI, Figs. 1-4) 315 



109. Polyborus lutosus Guadalupe Caraeara 318 



110. Paudion haliaetus earolinensis American Osprey (PI. X, Fig. 17 ; PI. XI, Figs. 5-9) 320 



Family STRlGlDiE. Barn Owls. 



111. Strix pratiucola American Barn Owl (PI. XII, Fig. 1) 325 



Family BunoNiDyE. Horned Owls, etc. 



112. Asio wilsonianus American Long-eared Owl (PI. XII, Fig. 2) 328 



113. Asio accipitrinus Short-eared Owl (PI. XII, Fig. 3) 332 



114. Syrnium uebulosnm Barred Owl (PI. XII, Fig. 4) 335 



115. Syruium nebulosum alleni Florida Barred Owl 333 



116. Syrnium occidentale Spotted Owl 349 



117. Scotiaptex einerea Great Gray Owl (PL XII, Fig. 5) 345 



118. Scotiaptex einerea lapponica Lapp Owl 346 



119. Nyctala tengmalmi ricUardsoiii Riokardson's Owl (PI. XII, Fig. 6) 347 



120. Nyctala acadica Saw- whet Owl (PL XII, Fig. 7) 350 



121. Megaseops asio Screech Owl (PL XII, Fig. 8) 354 



122. Megaseops asio tloridanns Florida Screech Owl 358 



123. Megaseops asio mccallii Texan Screech Owl 360 



124. Megaseops asio l)endirei California Screech Owl 361 



125. Megaseops asio kennicottii Kennicott's Screech Owl 363 



126. Megaseops asio maxwelli:e Rocky Mountain Screech Owl (PI. XII, Fig. 10) 363 



127. Megaseops asio trichopsis Mexican Screech Owl (PI. XII, Fig. 11) 368 



128. Megaseops asio aikeni Aiken's Screech Owl 370 



129. Megaseops asio macfarlauei MacFarlane's Screech Owl (PL XII, Fig. 9) --. 371 



130. Megaseops asio saturatus Puget Sound Screech Owl 373 



131. Megaseops flammeolus Flammulated Screech Owl (PL XII, Fig. 15) 374 



132. Megaseops flammeolus idahoensis Dwarf Screech Owl 37*5 



133. Bubo virginianns Great Horned Owl (PL XII, Fig. 12) 376 



134. Bubo virgiuianus subarcticus Western Horned Owl 383 



135. Bubo virginianns aroticus Arctic Horned Owl ; 386 



136. Bubo virginianns saturatus Dusky Horned Owl 387 



137. Nyctea nyctea Snowy Owl (PL XII, Fig. 19) 389 



138. Surnia ulula Hawk Owl 392 



139. Surnia ulula caparoch .-American Hawk Owl (PL XII, Fig. 18) 393 



140. Speotyto cunioularia hypogaja Burrowing Owl (PL XII, Fig. 14) 395 



141. Speotyto cunicularia floridana Florida Burrowing Owl (PL XII, Fig. 16) 400 



142. Glaucidium gnoma Pygmy Owl 403 



143. Glaucidium gnoma californicum California Pygmy Owl 



144. Glaucidium gnoma hoskinsii Hoskin's Pygmy Owl 



145. Glaucidium phahenoides Ferruginous Pygmy Owl (PL XII, Fig. 17) 409 



146. Micropallas whitneyi Elf Owl (PL XII, Fig. 13) 



407 



411 



