TABLE OF CONTENTS. VII 



Pace. 



96. Falco rnsticolus <>bsoletn8 Black Gyrfalcon (PI. X, Fig. 1) 28G 



97. Falcd mexioauus Prairie Falcon (PI. X, Figs. 2, 3) 288 



98. Falco percgriiiu.s aunt inn Duck Mawk (PI. .\, Fig-s. .5-7) 2!I2 



99. Falco percgrinn.s jiealci Peale's Falcon 297 



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



101. Falco columliarius suekll^.vi Black Merlin 302 



102. Falco ricliardsonil Richardson's Merlin 303 



103. Falco regulns Merlin 30-1 



104. Falco fusco-C(erulescens Aploniado Falcon ( I '1. X. Figs. "I, 10) 30G 



10.5. Falco tiununcnlns Kestrel 308 



106. Falco sparverins American Sparrow Hawk (PI. X, Figs. ll-Ki) 309 



107. Falco dominiceusis Cnban Sparrow Hawk 314 



108. Polyborns cln'riway Audubon's Caracara (PI. XI, Figs. 1-1) 315 



109. Polyboruslntosus Guadalupe Caracara 318 



110. Paudiou haliaetns carolinensis AmiTican ()si)rey (Pl.X, Fig. 17; PI. XI, Figs. 5-9) 320 



Family STiaciiDK. Barn Owls. 



111. Strix pratincola American Barn Owl (PI. .\II. Fig. 1) 325 



Family BrnoNiD.K. Horned Owls. etc. 



112. Asio wilsonianus Anu'rican Long-eariMl Owl (PI. XII, Fig. 2) 328 



113. Asio aceipitriuus ' Short-eared Owl (PI. XII, Fig. 3) ,S32 



114. Syruium iiebulosuni Barred Owl (PI. XII, Fig. 4) 335 



115. Syrnium nebulosnin alleni Florida Barred Owl 333 



116. Syruium occidentale Spotted Owl 349 



117. Scoti.aptex ciuerea Great Gray Owl (PI. XII, Fig. 5) 34,5 



118. Scotiaptex ciuerea lapponica Lapp Owl 346 



119. Nyctala teugmalmi richardsoni Rich.ardson's Owl ( PI. XII, Fig. 6) 347 



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



121. Megascops asio Screech Owl (PI. Xll, Fig. 8) 354 



122. Megascops asio floridauus Florida Screech Owl 358 



123. Megascops asio nucallii Texan Screech Owl 3t;0 



124. Megascops asio bendirei California Screecli Owl 361 



125. Megascops asio kennicottii Keunicott's Screech Owl _ , 363 



126. Megascops asio nuixw ellia' Rocky Mountain Screech Owl (PI. XII, Fig. 10) 363 



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



128. Megascops asio aikeni Aiken's Screech Owl 370 



129. Megascops asio macfarlauei MacFarlane's Screech Owl (PI. XII, Fig. 9) 371 



130. Megascops asio saturatus Puget Sound Screech Owl _ 373 



131. Megascops llammeolus Flanunulatcd Screech Owl (PI. XII, Fig. 15) 374 



132. Megascops tlammeolus idahoensis Dwarf Sireech Owl 376 



133. Bubo virginiauus Great Horned Owl (PI. XXI, Fig. 12) 376 



134. Bubo virgiuianus subarcticus Western Horned Owl 383 



135. Bubo virginiauus arcticus Arctic Horned Owl 3.S6 



136. Bubo virginiauus saturatus Dusky I lorued Owl 387 



137. Nyctea uyctea Snowy Owl (PI. Xll, Fig. 19) 389 



138. Suruia ulula Hawk Owl 392 



139. Suruia ulula caparoch American Hawk Owl (PI. XII, Fig. 18) 393 



140. Speotyto cunicularia hypog.i'a Burrowing Owl (PI. XII, Fig. 14) 395 



141. Speotyto cunicularia lloridana Florida Burrowing Owl (PI. XII, Fig. 10) 400 



142. Glaucidium gnoma Pygmy Owl 403 



143. Glaucidium gnoma californicum California Pygmy Owl 407 



144. Glauci<lium gnoma hoskinsii Ho.skin's Pygmy Owl 408 



145. Glaucidium )ihalainiides Ferruginous Pygmy 0\vl(Pl.XlI, Fig. 17) 109 



146. Micropallas whitneyi Elf Owl (PI. XII, Fig. 13) 411 



