Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16780
Increased mortality of Cooper's hawks accustomed to man
No abstract available.
Authors
Hollice A. Snyder, N.F.R. Snyder
Function of eye coloration in North American accipiters
Young nestling Cooper?s Hawks peck vigorously at red objects but do not peck at yellow objects. The significance of this response is discussed in relation to developmental changes in iris coloration in adult hawks.
Authors
N.F.R. Snyder, Hollice A. Snyder
Additional information on the red crossbill breeding in the lower piedmont region of North Carolina in 1967
No abstract available.
Authors
P.W. Sykes
Use of artificial nest structures by everglade kites
No abstract available.
Authors
P.W. Sykes, R. Chandler
Everglade kites feed on nonsnail prey
The Everglade Kite (Rostrhamus sociabilis plumbeus) of Florida has been called snail hawk or snail kite because it was thought to feed exclusively on the soft parts of the freshwater apple snail (Pomacea paludosa) (Nicholson 1926, Howell 1932, Bent 1937, Snyder and Snyder 1969). Furthermore, the other three subspecies of this wide-ranging Neotropical raptor (Friedmann 1950) are known to feed only
Authors
P.W. Sykes, H.W. Kale
Subspecific identification of song sparrows collected at Raleigh, N.C.,in summer of 1967
No abstract available.
Authors
P.W. Sykes, R.C. Laybourne
The status of the light-footed clapper rail
Only 12 California marsh areas are presently believed to be inhabited by the Light-footed Clapper Rail, and eight of these appear to support only 5-15 birds apiece. Tentative estimates for the other four are: Anaheim Bay 200, Upper Newport 30-35, Los Penasquitos 30, and Tijuana Estuary 150. These estimates, admittedly very rough, indicate a total Light-footed Rail population on only about 500 bi
Authors
S.R. Wilbur
Supplemental feeding program for California condors
A 2-year supplemental feeding program for the endangered California condor (Gymnogyps californianus) was of insufficient length to definitely show that a dependable food supply will stimulate additional breeding; however, production did increase during the study, and food supply appears a likely cause. Because no undesirable effects of feeding were noted, and because condor production is now crit
Authors
S.R. Wilbur, W.D. Carrier, J.C. Borneman
Electrophoresis as a management tool
The theme of this 1974 Northeast Fish and Wildlife Conference is 'A New Era'. Indeed, it is a new era for improved techniques to assist in management of our fish and wildlife resources for the maximum benefit of all. In some cases, the new techniques are primarily used in research.on fish and wildlife, and the results from the research are used to aid management and enforcement agencies in the d
Authors
R.P. Morgan, J.A. Chapman, L.A. Noe, C. J. Henny