Rt'codhj pKblished Onutholoyical fJ'orks. 513 



opinions of othfr writers arc, moreover, taken into con- 

 sideration. Tlie eonchusions at which the anthor arrives are 

 that the Owls show no special relationship to the Accipitres, 

 but are allied remotely to the Caprimulgi ; that to the latter 

 Striae pratincola approaches most nearly, with Asia ivil- 

 soniaiius next in order ; and that Speotyto, Surtna, and 

 Micropallas are somewhat closely inter-related. The families 

 Striffidce and Babon'idde are accepted for Strix and the 

 remaining forms respectively. Most of the text-figures and 

 all those on the plates are new\ 



112. Shufeldt on the SandGrouse. 



[On tlie Systematic Position of the Sand-Grouse fP/^'roc/e';,- Syrrhaptes). 

 By K. W. Shuf>4dt. American Xaturalist, xxxv. pp. 11-16, 1901.] 



The author agrees with Sclater and others, who assign to 

 the Sand-Giouse an intermediate position between the Galli 

 and the Columbce, and place them in a Suborder Pterocletes 

 with the single family Pterocletidtp. He has examined bones 

 of Sijrrhajites paradoxus and entire skeletons of Plerucles 

 arenarius, one of the latter being figured. The sknll, with 

 its Tetraonine characteristics, forbids the inclusion of these 

 birds in the Colurabse^ while the Columbine sternum and 

 pectoral limb equally oppose their classification with the 

 Galli. 



118. S(ejne(/er on the II 'heat ears of North America. 



[On the Wliealears (Sa.ricohi) occurring in North America. By 

 Leonhard Stejneger. Proc. U.S. Nat. Mns. xxiii. p. 473.] 



It is here sought to prove that there are two forms or sub- 

 species of the Wheatear which occur in North America, one 

 in the North-east and the other in the North-west. The 

 larger form {Saxicola amanthe leucorrhoa) breeds in Green- 

 land and in the adjacent parts of N. America, migrating 

 to Western Europe and West Africa. The smaller (*S'. oenanthc 

 typica) breeds in Alaska and migrates into ]''astern Asia. 

 Loj-d Clifton (Ibis, 1879, p. 368) has already called attention 

 to the fact that examples of l)(»th these forms occur on the 

 south coast of I%u"land. 



