Chronology of migration, harvest and food habits of wintering waterfowl in Sinaloa, Mexico / Rodrigo Esteban Migoya von Bertrab.
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TextPublication details: Auburn, AL : Auburn University, 1989.Description: xv, 100 leaves : ill. , maps ; 28 cmOnline resources: Abstract: Chronology of migration, harvest, and food habits of waterfowl wintering in Bahia de Santa Maria, Sinaloa, Mexico were studied from October 1987 - February 1988. Data also were collected from adjacent Ensenada del Pabellon from October 1987 - December 1987. Most species reached Santa Maria in September, except black brant (Branta bernicla nigricans),which arrived by mid- December. Peak migration occurred in December,with green- winged teal (Anas crecca carolinensis) and northern pintails (Anas acuta) constituting 89.0% wintering waterfowl. The most abundant species at Pabellon were pintails (26.0 - 72.0%), green-winged teal (7.0 - 21.0%), cinnamon teal (Anas cyanoptera) (2.0 - 21.0%), and northern shovelers (Anas clypeata) (1.0 - 21.0%). Even though counts were incomplete, figures confirm this marsh as a considerably more important dabbling duck wintering site than Santa Maria (502,000 total waterfowl vs 163,000). A total of 10,447 waterfowl (+ 16.2% crippling-loss) was killed durin
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Thesis(M.S.)--Auburn University, 1989.
Includes bibliographical references (leaves 66-70).
Chronology of migration, harvest, and food habits of waterfowl wintering in Bahia de Santa Maria, Sinaloa, Mexico were studied from October 1987 - February 1988. Data also were collected from adjacent Ensenada del Pabellon from October 1987 - December 1987. Most species reached Santa Maria in September, except black brant (Branta bernicla nigricans),which arrived by mid- December. Peak migration occurred in December,with green- winged teal (Anas crecca carolinensis) and northern pintails (Anas acuta) constituting 89.0% wintering waterfowl. The most abundant species at Pabellon were pintails (26.0 - 72.0%), green-winged teal (7.0 - 21.0%), cinnamon teal (Anas cyanoptera) (2.0 - 21.0%), and northern shovelers (Anas clypeata) (1.0 - 21.0%). Even though counts were incomplete, figures confirm this marsh as a considerably more important dabbling duck wintering site than Santa Maria (502,000 total waterfowl vs 163,000). A total of 10,447 waterfowl (+ 16.2% crippling-loss) was killed durin