TABLE OF CONTENTS. 



Pag-e. 



Family Motacillid^s;. The "Wagtails and Pipits 1 



Key to the Genera of Motacillidse 2 



Genus 1. Motacilla Linnssus 2 



Key to the Species of Motacilla 3 



1. Motacilla alba Linnseus 1 4 



2. Motacilla ocularis Swinhoe J 6 



Genus 2. Budytes Cuvier 7 



Key to the Subspecies of Budytes flavus 8 



3. Budytes flavus alascensis, new subspecies « 8 



Genus 3. Anthus Bechstein 10 



Key to the Species of Anthus 11 



4. Anthus pensilvanicus (Latham) 12 



5. Anthus cervinus (Pallas) 15 



6. Anthus pratensis (Linnseus) 18 



7. Anthus spragueii (Audubon) 20 



8. Anthus parvus Lawrence .' 22 



Family Hirhndinid^e. The Swallows 23 



Key to the Genera of Hirundinidae 26 



Genus 1. Progne Boie 28 



Key to the Species and Subspecies of Progne 29 



1. Progne subis subia (Linnseus) 31 



2. Progne subis hesperia Brewster 35 



3. Progne cryptoleuca Baird 37 



4. Progne dominicensis (Gmelin) 38 



5. Progne sinalose JSTelson 40 



6. Progne chalybea chalybea (Gmelin) 40 



7. Progne modesta (N^boux) 43 



Genus 2. Petrochelidon Cabanis 44 



Key to the Species and Subspecies of Petrochelidon 46 



8. Petrochelidon lunifrons lunifrons (Say) 47 



9. Petrochelidon lunifrons tachina Oberholser 50 



10. Petrochelidon lunifrons melanogaster (Swainson ) 51 



11. Petrochelidon fulva fulva ( Vieillot) 53 



12. Petrochelidon fulva pceciloma (Gosse) 54 



13. Petrochelidon fulva pallida Nelson 56 



Genus 3. Stelgidopteryx Baird 56 



Key to the Species and Subspecies of Stelgidopteryx 57 



14. Stelgidopteryx serripennis (Audubon) .' 58 



15. Stelgidopteryx ridgwayi Nelson 61 



16. Stelgidopteryx salvini Ridgway 62 



17. Stelgidopteryx ruficollis uropygialis (Lawrence) 63 



n See Addenda, p. 737. 



VII 



