Clutch Size, Hatching Success, and Eggshell-Thinning in Western Gulls

George L Hunt,Molly W Hunt

doi:10.2307/1366580

Abstract

Journal Article Clutch Size, Hatching Success, and Eggshell-Thinning in Western Gulls Get access George L. Hunt, Jr., George L. Hunt, Jr. Department of Anthropology University of Washington Seattle, Washington 98105 Search for other works by this author on: Oxford Academic Google Scholar Molly W. Hunt Molly W. Hunt Department of Anthropology University of Washington Seattle, Washington 98105 Search for other works by this author on: Oxford Academic Google Scholar The Condor, Volume 75, Issue 4, 1 October 1973, Pages 483–486, https://doi.org/10.2307/1366580 Published: 01 October 1973 Article history Accepted: 20 December 1972 Published: 01 October 1973

Highlights

While engaged in an anthropological investigation of folk-zoology among the Tzeltal-speaking Indians of Tenejapa, Chiapas, Mexico, from April through December 1971, I obtained a number of noteworthy bird records
One bird in winter plumage was observed at Puerto Arista on 2 August
The data were collected in May and June 1972, on Santa Barbara Island, Channel Islands, Santa Barbara County, California, during a study of the factors affecting Western Gull chick survival

Summary

While engaged in an anthropological investigation of folk-zoology among the Tzeltal-speaking Indians of Tenejapa, Chiapas, Mexico, from April through December 1971, I obtained a number of noteworthy bird records. Those for three shore bird species and the Black-throated Blue Warbler (Dendroica caemclescens) are the first published for the state. Several individuals were seen at Puerto Arista on 2 August and three individuals at Aguacatenango ( 1700 m), 35 km SE of San Cristobal, on 22 September This species and the Wilsons’ Plover have been recorded on the Pacific coast of Guatemala It is of particular interest that in these large clutches was hatching success low and eggshell thickness was reduced

METHODS

No of eggs

RESULTS

DISCUSSION

LITERATURE CITED