Ridgway on Birds observed in Knox Co., Indiana. 1 7 
bird ( Dendroeca cestiva ), Maryland Yellow- throat {Geothlypis trichas ), 
White-eyed Vireo (V noveboracensis ), Wood Thrush ( Hylocichla muste- 
lina ), Black-throated Green Warbler ( Dendroeca Virens'), Indigo Bird 
( Passerina cyanea ) . 
April 19. Great-crested Flycatcher ( Myiarchus crinitus ), Kingbird 
( Tyr annus carolinensis ), Catbird ( Galeoscoptes carolinensis ) , Pine- 
creeping Warbler (. Dendroeca pinus). 
April 20. Golden-crowned Thrush ( S turns auricapillus ), Kentucky 
Warbler ( Oporornis formosa). 
April 21. Red-eye Vireo ( Vireosylvia olivacea ), Tawny Thrush ( Hylo - 
cichla fuscescens). 
April 22. Yellow-breasted Chat (Icieria virens). 
April 23. Blue-winged Yellow Warbler ( He l m in thoph a ga pinus). 
April 24. Warbling Vireo {Vireoslyvia gilva), Ruby-throated Hum- 
ming Bird ( Trochilus colubris ), Baltimore Oriole ( Icterus galbula ), 
Chestnut-sided Warbler ( Dendroeca pennsylvanica ) , Worm-eating War- 
bler ( Helminthotherus vermivorus ), Nighthawk (Chordeiles popetue). 
April 25. Rose-breasted Grosbeak ( Zamelodia ludoviciana *), Blue 
Warbler ( Dendroeca ccerulea *), Hooded Warbler ( Myiodioctes mitratus), 
Yellow-billed Cuckoo ( Coccyzus americanus ). 
April 26. Black-throated Bunting ( Spiza americana ), Yellow-winged 
Sparrow (^Coturni cuius passerinus) , Wood Pewee (Contopus virens), Oak- 
woods Sparrow (. Peuccea cestivalis illinoensis ). 
April 30. Bay-breasted Warbler (. Dendroeca costanea), Long-billed 
Marsh Wren ( Telmatodytes palustris). 
May 2. Black-throated Blue Warbler ( Dendroeca ccerulescens) , Black- 
and-yellow Warbler ( D . maculosa ), Chestnut-sided Warbler (Z>. jbennsyl- 
vanica), Red-poll Warbler ( D . palmarum) . 
May 3. Blackburnian Warbler (Z>. blackburnice). 
May 6. Nashville Warbler ( He l mint ho ft h aga ruficapilla) , Cape May 
Warbler ( Perissoglossa tigrina), Mourning Warbler ( Geothlypis Phil- 
adelphia.) 
May 7. Tennessee Warbler {Helminthophaga peregrina). 
Among the migratory species which had already arrived by 
the 15th were the Large-billed Water Thrush ( Siurus motacilla ) , 
numbers of which were heard singing in the swamp, the Black- 
and-white Creeper ( Mniotilta varia borealis ), Blue-gray Gnat- 
catcher ( Polioptila ccerulea ) , and a few others. 
The nesting season began much later than usual, as the fol- 
lowing list, of the earliest date on which the eggs of any species 
were obtained, will show.! 
* These all common on the date when first observed. 
t The difference between the season just passed in the arrival and time of nesting 
of the birds, may be illustrated by the fact that in the spring of 1880, Setophaga ruti- 
cilla was noted near Wheatland April 1, while in the spring of 1878, eggs of Protonotaria 
citrea were obtained near Mt. Carmel April 27- 
