Migration and Distribution of North American Birds. 1£3 



Believing that there exists certain relations between the 

 dietetic habits of our true migrants and their order of arri- 

 val, I have prepared the following annotated list. I have 

 chosen the order in which they arrived in the spring of 1882, 

 as my observations then were more thorough than in 1883: 



Turdus raigratorius. (Robin.) Mcli. 10. 



Its iDrincipal food consists of worms, caterpillars and berries.* 



Sialia sialis. (Blue bird.) Mch. 14. 



Food — Larvae and insects. 



Sturnella magna. (Meadow lark,) Mch. 28. 

 Food — Larvee and insects. 



Melospiza fascia' a. (Song sparrow.) Mch. 28. 

 Food — Seeds and insects. 



Sayiornis fusca. (Phoebe.) Mch. 29. 



A purely insectivorous bird. 



Iridoprocure bicolor. (White bellied swallow.) Apr. l.j 

 Also an insectivorous bird. 



Quiscalus purpureus. (Purple grackle ) Apr. 3. 



In the spring its food is mostly worms, grubs and caterpillars. 



Regulus satrapa. (Golden crowned kinglet.) Apr. 3. 

 Food — Small insects and larvae. 



Colaptes auratus. (Flicker.) Apr. 3. 



Food — Ants, beetles and caterpillars. 



Certhia familiaris. (Brown creeper.) Apr. 6. 



Food — Small beetles and insects. 

 Dendroeca coronata. (Yellow rump warbler.) Apr. 6. 



Food — Caterpillars, small flies and beetles. 



Sphyropicus varius. (Yellow oellied wood-ijecker . ) Apr. 7. 

 Food — Ants, beetles and small insects. 



Tyraunus carolinensis. (King bird.) Apr. 12. 

 Food is wholly insectivorous. 



Regulus calendula. (Ruby crowned kinglet.) Apr. 14. 

 Food — Larvas and small insects. 



Carpodacus purpureus. (Purple finch.) Apr. 14. 



Food — Seeds, buds, plant-lice and caterpillars. 



* The notes respecting the food were mostly taken from Prof. F. H. King's 

 work, entitled "The Economic RelatioDS of Wisconsin Birds," published 

 in " Geology of Wisconsin," Vol. I. 

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