1910] 



Tracy: White Markings in Birds. 



299 



PASSERIFORM BIRDS OF ARBOREAL HABIT. 

 A. BIRDS WITH WHITE WING OR TAIL MARKINGS. 



FRINGILLIDAE 



Hesperiphona vespertina 



Pinicola enudeator leucura 



Loxia leucoptera 



Astragalinus tristis 



Astragalinus psaltria 



Astragalinus psaltria hespero- 

 philus 



Zamelodia melanocephala 



Zamelodia ludoviciana 



Passerina amoena 



Sporophila morelleti sharpei 



Spizella monticola 



Pipilo erythrophthalmus 



Pipilo maculatus 

 LANIIDAE 



Lanius borealis 



Lanius ludovicianus 



VlREONIDAE 



Lanivireo solitarius 

 Vireo 'belli 

 Vireo huttoni 



ICTERIDAE 



Icterus nelsoni 



Icterus melanocephalus audu- 



boni 



Icterus cucullatus sennetti 

 Icterus bullocki 

 Icterus parisorum 

 Xanthocephalus xanthocephalus 

 TROGLODYTIDAE 



Mimus polyglottos 



TURDIDAE 



Myadestes townsendi 

 Planesticus migratorius 

 Planesticus confinis 



SlTTIDAE 



Sitta canadensis 

 Sitta pygmaea 



CORVIDAE 



Nucifraga columbiana 

 Pica pica hudsonia 

 Pica nuttalli 

 Cyanocitta cristata 



TYRANNIDAE 



Muscivora forficata 

 Tyrannus tyrannus 

 Tyrannus verticalis 

 Myiarchus cinerascens 

 Myiarchus ma gist er 

 Sayornis nigricans 



SYLVIIDAE 



Polioptila caerulea 

 Polioptila californica 

 Polioptila plumbea 



HlRUNDINIDAE 



Hirundo erythrogaster 

 Tachycineta thalassina 



BOMBYCILLIDAE 



Bombycilla garrula 

 Phainopepla nitens 

 PARIDAE 



Penfhestes atricapillus 



B. BIRDS WITHOUT WHITE WING OR TAIL MARKINGS. 



TURDIDAE 



Ixoreus naevius 

 Hylocichla mustelina 

 Hylocichla fuscescens 

 HylocicTila guttata 

 Hylocichla ustulata 

 Hylocichla aliciae 

 Sialia sialis 

 Sialia mexicana 



Sialia currucoides 

 Cyanosylvia suecica robusta 



CINCLIDAE 



Cinclus mexicanus unicolor 



SYLVIIDAE 



Acanthopneuste borealis 

 Eegulus calendula 

 Eegulus satrapa 



