Tricolored Blackbird Portal

This report, by Keiller Kyle and Rodd Kelsey of Audubon California, provides a summary of the 2011 statewide survey.

This report by Dr. Jonathan Feenstra summarizes the results of his efforts to estimate the number of tricolored blackbirds in southern California during the 2009 breeding season.

Results of Kelly Weintraub's 2011 field season in the Tulare Basin determining the nesting success rates of Tricolored Blackbird colonies in various nesting substrates. This report was prepared for the Fish and Wildlife Service as an annual report.

Methodology, results, and discussion of Tricolored Blackbird nesting success are included.

Tricolors were trapped and banded at 4 locations in 2011 and hundreds of previously banded birds were recaptured. This report summarizes the trapping and banding results of U.C. Davis ecologist Dr. Robert Meese.

This is the annual report of Dr. Robert Meese of the Dept. of Environmental Science & Policy at the University of California, Davis and summarizes his field work in detecting, monitoring, and estimating the reproductive success of tricolored blackbird breeding colonies in the Central Valley of California. This report integrates 7 years of field work, provides evidence for insect limitation as among the factors causing the 35% reduction in abundance of tricolors from 2008 to 2011, and provides conservation recommendations that may help to sustain the species.

This report documents the results of field work conducted in 2010 by Dr. Robert Meese, discusses the significance of these results, and provides recommendations for the conservation of tricolors.

This report provides a summary of efforts made by Dr. Robert Meese and collaborators in 2010 to trap and band tricolored blackbirds at five sites in the Central Valley, from Kern National Wildlife Refuge in the south to Delevan National Wildlife Refuge in the north, and includes a summary of records of previously banded birds recovered, recaptured, and re-sighted during the field season.

This report summarizes the costs and benefits of conserving tricolored blackbird breeding colonies located in grain fields in the San Joaquin Valley from 2005 through 2009. Report prepared by Bob Meese and submitted the U.S. Fish & Wildlife Service, 2800 Cottage Way, Sacramento, CA 95825.