AGRICULTURAL ORNITHOLOGY. 297 



48. Genus Seiurus, (Sw., 1827.) 



1. S. aurocapillus (Linn.,) Sw., golden-crowned ttirusli. Summer resident, 

 common in woods ; insectivorous. " Feed wholly on insects and tlieir larvae, 

 particularly small coleopterous kinds, and ants collected on the ground." (Nutt.) 



2. S. novcboracensis, (Gmel.,) Nutt., water thrush. Migratory, frequent in 

 marshy thickets ; insectivorous. Feeds on such insects and their larva? as in- 

 habit marshy localities. 



3. S.ludovicianus, (Aud.,) Bon., large-billed water thrush. Migratory, more 

 rare than the last ; insectivorous. Very closely resembles the preceding species 

 in appearance and habits. 



49. Genus Dendroica, (Gray, 1842.) 



1,. D. virens, (Gmel.,) Bd., black-throated green warbler. Migratory, rather 

 rare ; insectivorous. " May be occasionally seen for an hour at a time carefully 

 and actively searching for small caterpillars and winged insects aruidst the 

 tv'hite blossoms of the shady apple tree." (Nutt.) 



2. D. canadensis, (Linn., ) Bd., black-throated blue warbler. Migratory, rare ; 

 insectivorous. " An expert catcher of flies." 



3. D. coronata, (Linn., ) Gray, yellow-rumped warbler. Migratory, abundant ; 

 insectivorous. " Feeds on insects, &c. ; is expert in catching flies, and is a 

 great devourer of caterpillars." (Aud.) 



4. D. blackburnice, (Gmel.,) Bd., Blackburnian warbler. Migratory, rather 

 rare; insectivorous. "An exceedingly nimble insect-hunter, keeping towards 

 the tops of trees." 



5. D. casf.anca, (Wils.,) Bd., bay-breasted warbler. Migratory, quite rarej 

 insectivorous. " Sometimes seen searching for insects along fences," &c. 



6. D. pcnnsylvanica, (Linn.,) Bd., chestnut-sided warbler. Migratory, fre- 

 quent; insectivorous. "In the spring they are generally restless, and intently 

 engaged iu the chase of insects amidst the blossoms and tender leaves." 



7. D. carulca, (Wils.,) Bd., blue warbler. Migratory, quite rare ; insectivorous. 

 " Feeds principally on insects and their larvoe." 



8. D. striata, (Forst.,) Bd., black-poll warbler. Migratory, frequent; in 

 sectivorous. "An active fly-catcher." 



9. D. cBstiva, (Gmel.,) Bd., yellow warbler. Summer resident, frequent; in- 

 sectivorous. " Feeds on the smaller insects, and a variety of small larvce and 

 caterpillai's." 



Observation. — Nuttall remarks : " It is amusing to observe the sagacity of this 

 little bird in disposing of tbe egg of the vagrant and parasitic coio troopial. 

 The egg being deposited before the laying' of the rightful tenant, aud too large 

 for ejectment, is ingeniously incarcerated in the bottom of the nest, and a 

 new lining placed above it, so that it is never hatched, to prove the dragon of 

 the brood." 



10. D. maculosa, (Gmel.,) Bd., black and yellow warbler. Migratory, com- 

 mon ; insectivorous. Very active in searching for their insect and larvai food. 



11. D.tignna, (Gmel.,) Bd., Cape May warbler. Migratory, extremely rare, 

 insectivorous. Feeds on insect food, but its habits are little known. 



12. D. ixiJmarum, (Gmel.,) Bd., yellow red-poll warbler. Migratoiy, rare 

 in swampy thickets ; insectivorous. Industrious insect-eaters. 



13. D. discolor, (Vieill.,) Bd., prairie warbler. Migratory, rare; found in 

 open woods ; insectivorous. " Feeds on caterpillars and flies." 



50. Genus Mijiodioct.es, (And., 1839.) 



1. M. mitratus, (Gmel.,) And., hooded warbler. Summer resident ; very 

 rare so far north, insectivorous. "It flies swiftly after its insect prey, securing 

 the greater part of it on the wdng." (Aud.) 



2. il/./>w.5«7^^5, (Wils.,) Bon., green bhick-capped warbler. Summer resident, 

 very rare; insectivorous. /'It has all the habits of a true fly-catcher, feeding 

 on small insects, which it catches entirely on the wing." (Aud.) 



