Henri C. Seibert
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View article: Mortality of Vertebrates and Invertebrates on an Athens County, Ohio, Highway
Mortality of Vertebrates and Invertebrates on an Athens County, Ohio, Highway Open
Although previous road-kill surveys have tallied the number and kinds of vertebrates that were victims of vehicular traffic (mostly birds and mammals), none has recorded invertebrate mortality. A 14-month survey on foot of each side of a 1…
View article: Wing and Tail Molt in the Reeves Pheasant
Wing and Tail Molt in the Reeves Pheasant Open
In the Reeves Pheasant, the 10th juvenal primary is retained throughout the first winter. Adult males start their primary molt two months earlier and complete it three weeks earlier than do the females. There are 18 rectrices in both juven…
View article: Light Intensity and the Roosting Flight of Herons in New Jersey
Light Intensity and the Roosting Flight of Herons in New Jersey Open
the writer located a heron roost situated at the south end of Ocean City, Cape May County, New Jersey.The birds were noted returning from the marshes to the west and settling down for the night in a small growth of cherry trees.The tallest…
View article: Differences between Migrant and Non-Migrant Birds in Food and Water Intake at Various Temperatures and Photoperiods
Differences between Migrant and Non-Migrant Birds in Food and Water Intake at Various Temperatures and Photoperiods Open
If an energy balance is maintained, then energy intake must equal energy outgo, and factors affecting one would also affect the other.Although the heat production has been determined for many species of birds, very little research has been…