Assessing Microhabitat Characteristics as Predictors of Nest-Box Occupancy in a Declining Bird Species, the American Kestrel (Falco sparverius)

2020 ◽  
Vol 27 (2) ◽  
pp. 344
Author(s):  
Matthew Kamm ◽  
J. Michael Reed
Keyword(s):  
Bird Species ◽  
Falco Sparverius ◽  
Nest Box ◽  
American Kestrel

Landscape and Microsite Characteristics of American Kestrel (Falco sparverius) Nest-Box Sites along Highway Corridors in Southeast Ohio

2021 ◽  
Vol 28 (3) ◽  
Author(s):  
Lucille M. Williams ◽  
Donald P. Althoff ◽  
Robert L. Hopkins ◽  
Henry J. Barrows
Keyword(s):  
Falco Sparverius ◽  
Nest Box ◽  
American Kestrel

scholarly journals Why are American Kestrel (Falco sparverius) Populations Declining in North America? Evidence from Nest-Box Programs

2009 ◽  
Vol 43 (4) ◽  
pp. 274-282 ◽  
Author(s):  
John A. Smallwood ◽  
Mark F. Causey ◽  
David H. Mossop ◽  
James R. Klucsarits ◽  
Bob Robertson ◽  
...  
Keyword(s):  
North America ◽  
Falco Sparverius ◽  
Nest Box ◽  
American Kestrel

Hypothermic tolerance in an embryonic American kestrel (Falco sparverius)

1998 ◽  
Vol 76 (7) ◽  
pp. 1399-1402 ◽  
Author(s):  
Keith W Sockman ◽  
Hubert Schwabl
Keyword(s):  
Incubation Period ◽  
Wild Species ◽  
Bird Species ◽  
Falco Sparverius ◽  
Natural Conditions ◽  
American Kestrel ◽  
Parental Absence ◽  
The Mean

Embryos of several bird species tolerate acute hypothermia. However, the extent to which it can be tolerated by wild species living under natural conditions is poorly documented. At a single American kestrel (Falco sparverius) nest 15 days into incubation, we observed a 21-h bout of egg neglect by the parents during which nest (egg) temperature averaged 12.7°C. Normal incubation patterns resumed thereafter, and one of three viable eggs hatched 32 days after incubation onset, an incubation period 2.5 days longer than the mean in this study. The nestling appeared to develop and fledge normally. Although embryonic tolerance of extended hypothermia is known to occur in some seabirds, its presence in Falconiformes has not heretofore been recorded. Embryonic hypothermic tolerance may be adaptive in species with extended periods of parental absence during incubation.

The influence of Trichinella pseudospiralis infection on the behaviour of captive, nonbreeding American kestrels (Falco sparverius)

1988 ◽  
Vol 66 (7) ◽  
pp. 1685-1692 ◽  
Author(s):  
Michèle D. Saumier ◽  
Manfred E. Rau ◽  
David M. Bird
Keyword(s):  
Falco Sparverius ◽  
Competitive Fitness ◽  
American Kestrel ◽  
Behavioural Changes ◽  
Trichinella Pseudospiralis ◽  
Behavioural Effects ◽  
American Kestrels ◽  
Muscle Larvae ◽  
Adult Phase ◽  
Muscle Groups

Trichinella pseudospiralis infections induced mild behavioural changes in the American kestrel host (Falco sparverius) within the first 5 days postinoculation, a period that corresponds to the adult phase of the infection. However, more severe effects on mobility were precipitated as the larvae migrated and became established in the musculature. The debilitation persisted for at least 5 weeks postinoculation and involved a reduction in exercising, flying, elevated perching, and preening, and was accompanied by an increase in the frequency of walking and floor perching. Such behavioural effects, attributable to the presence of muscle larvae, may reduce the competitive fitness of infected individuals. The muscle larvae were randomly distributed among various muscle groups.

American Kestrel (Falco sparverius)

2002 ◽  
Author(s):  
John A. Smallwood ◽  
David M. Bird
Keyword(s):  
Falco Sparverius ◽  
American Kestrel
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