ftidgway.] 



'622 



[February 18, 



Species. 



Date of leafing. 



Date of flowering. 



Cercis canadensis. 



April 20. 



April 10. 



Prunus serotina. 



" 5. 



" 25. 



Cornus jlorida. 



" 20. 







Fraxinus americana. 







April 12. 



Liriodendron tulipifera. 



April 4. 







Persica vulgaris. 



" 20. 



April 12. 



Pyrus rnalus. 



" 13. 



" 20. 



Quercus qlba. 



" 13. 



— 



Syringa vulgaris. 



" 19. 



April 12. 



Ulmus americana. 







March 20. 



Aquilegia canadensis. 



April 20. 







Claytonia virginica. • 



« 6. 



April 12. 



Erythronum \americanum. 



" 20. 



— 



Geranium mhpulatum. 



" 25. 



— 



Hepatica triloba. 







March 31. 



Iris versicolor^ 



April 13. 



— 



Podophyllum peltatum. 



March 30. 







Rubus villosus. 



April 10. 



_ 



Sambucus canadensis. 



March 20. 



— 



Sanguinaria canadensis. 



April 12. 



April 14. 



As the peach ordinarily blooms at Mt. Carmel about the twentieth 

 of March — sometimes even as early as the first of that month — it 

 must be borne in mind that the spring of 1872 was unusually back- 

 ward and that the first leafing and flowering of the above species 

 usually takes place two or three weeks earlier than the dates above 

 given. 



The nesting season begins with March and ends in October, though 

 only one species (Ortyx virginianus) has been noticed breeding in the 

 latter month and but a few (Corvus americanus and certain Rapto- 

 res) in the former. From the middle of April to the middle of 

 June is the most productive season to the oologist. Eggs of Buteo 

 borealis have been obtained at Mt. Carmel on the sixth of March, the 

 nest being commenced early in February. On the first of April Cyan- 

 ura crisiata, Turdus migratorius, Sialia sialis and Parus carolinensis 

 often have eggs, while Sayornis fuscus, Harporliynclius rufus, Ceryle 

 alcyon, Quiscalus ozneus and a few others are building their nests. 

 Collurio excubitoroides, Zenaidura carolinensis, Cardinalis virginianus 

 and Spizella socialis also lay their first eggs in April, either of them 

 often as early as the middle of the month. All the other species nest 

 in May, June and July, though in the latter month very few nests in- 



