Publications

This paper, based on a study carried out at the Seney National Wildlife Refuge, Seney, Michigan, and the Patuxent Wildlife Research Center, Laurel, Maryland, describes methods and techniques for collecting, storing, and rearing 8 species of Simuliidae. Included in the study were Cnephia dacotensis (Dyar & Shannon), C. mutata (Malloch), Prosimulium fuscum Syme & Davies, Simulium aureum Fries, S. de

During the breeding season of 1966, as an adjunct to a taxonomic study of Red-winged Blackbirds in Florida, 177 Redwin g nests were found. The general habitat types were noted, and the plant species harboring nests were listed.....Redwing nests were found in 30 genera of plants. Buttonbush was the primary choice; it was used to support 50 of the 177 nests. Silverling and willow were the next most

No abstract available.

A technique is described for using strips of gauze to collect large numbers of larvae of Cnephia dacotensis (Dyar & Shannon), Simulium decorum (Walker), S. venustuni Say, S. vcrecundum Stone & Jamnback, and S. vittatum Zetterstedt from various water habitats.

No abstract available.

The establishment of a feral population of the Red-whiskered Bulbul (Pycnonotus jocosus) in the environs of Miami, Dade County, Florida, was reported by L. A. Stimson (Florida Naturalist, 35: 93, 1962). Bulbuls were present in Kendall, just south of Miami, in the spring of 1961, and apparently raised young there that summer. In the fall of that year, bulbuls were also seen in the vicinity of Princ

No abstract available.

No abstract available.

The possibility of using neutron activation analyses to differentiate sources of North American waterfowl was investigated by irradiating rectrices and wing bones of birds collected in several localities, and comparing the characteristic gamma-ray spectra. Canada goose rectrices from Oregon specimens could be distinguished from those taken in Wisconsin and Colorado based on higher levels of Mn.

No asbtract available.

A 30-day toxicity test was made to determine the relative toxicity of lead, a tin-lead alloy, zinc, nickel, teflon-coated steel, and tin, all in shot form, to pen-reared mallard drakes. All of the 15 ducks dosed with lead died. Twenty-seven percent of 15 dosed with alloy, and 20 percent of 15 dosed with zinc also died. Ten of the remaining zinc-dosed ducks showed signs of distress, including losse

Catastrophic declines of three raptorial species in the United States have been accompanied by decreases in eggshell thickness that began in 1947, have amounted to 19 percent or more, and were identical to phenomena reported in Britain. In 1967, shell thickness in herring gull eggs from five states decreased with increases in chlorinated hydrocarbon residues.