Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16780
Age and sex determination of juvenile band-tailed pigeons
Captive band-tailed pigeons (Columbafasciata) were studied to document progression of molts and plumages from juvenal to adult age. Immature pigeons began the post-juvenal molt at 35 days which continued up to 340 days. The only 3 plumage characters useful for identification and estimation of age were presence of juvenal lesser, middle, and greater secondary coverts, juvenal secondaries, and juve
Authors
J.A. White, C.E. Braun
Rehabilitation of birds oiled on two mid-Atlantic estuaries
An estimated 52,500 birds died as a result of 7 major oil spills on 2 mid-Atlantic estuaries between 1973-78. Ruddy ducks (Oxyura jamaicensis) constituted 98% of 12,500 birds known to have died from 5 spills on the Delaware River. Seventy-six percent of 40,000 dead birds from 2 Chesapeake Bay spills were horned grebes (Podiceps auritus) and oldsquaw (Clangula hyemalis). Oiled waterfowl that were c
Authors
Matthew C. Perry, Fred Ferrigno, Fairfax H. Settle
Influence of laying on lead accumulation in bone of mallard ducks
Paired mallard ducks (Anas platyrhynchos) were given No. 4 lead shot, and bone lead concentrations were compared in drakes and in laying and nonlaying hens. Lead accumulation was significantly greater in bones with a high medullary content (femur and sternum) compared with bones with a lower medullary content (ulna-radius or wingbones). In dosed groups, hens always contained higher bone lead resid
Authors
M. T. Finley, M. P. Dieter
Evidence for the zonation of interrenal tissue in the adrenal gland of the duck (Anas platyrhynchos)
No abstract available.
Authors
R.B. Pearce, J. Cronshaw, W. N. Holmes
Effects of dietary vanadium in mallard ducks
Adult mallard ducks fed 0, 1, 10, or 100 ppm vanadyl sulfate in the diet were sacrificed after 12 wk on treatment; tissues were analyzed for vanadium. No birds died during the study and body weights did not change. Vanadium accumulated to higher concentrations in the bone and liver than in other tissues. Concentrations in bones of hens were five times those in bones of drakes, suggesting an intera
Authors
D. H. White, M. P. Dieter
Texas colonial waterbird census, 1973-1976
No abstract available.
Authors
Gene W. Blacklock, D.R. Blankinship, S. Kennedy, K. A. King, R.T. Paul, R.D. Slack, J.C. Smith, R.C. Telfair
Herons and their allies: Atlas of Atlantic Coast colonies, 1975 and 1976
No abstract available.
Authors
R. G. Osborn, T. W. Custer
Use of circular plot surveys in estimating the density of a population with poisson scattering
No abstract available.
Authors
F.L. Ramsey, J. M. Scott