Survey Field Report Form


This is a field form that participants in the Statewide or Sample Surveys can use to record their field observations.

CDFW Seeks Public Comment on Formal Status Review by June 1, 2016.


Today the California Department of Fish and Wildlife (CDFW) issued an appeal for public comment on a proposal to list the Tricolored Blackbird as a threatened or endangered species. CDFW is soliciting public comment regarding the species’ ecology, biology, life history, distribution, abundance, threats and habitat that may be essential for the species, as well as recommendations for management of the species. Comments, data and other information can be submitted by email to If submitting comments by email, please include “Tricolored Blackbird” in the subject heading.

Comments may also be submitted by regular mail to:

California Department of Fish and Wildlife
Nongame Wildlife Program
Attn: Neil Clipperton
1812 Ninth St.
Sacramento, CA 95811

All comments received by June 1, 2016 will be evaluated prior to submission of the CDFW report to the Commission.

Regional Conservation Partnership Program: Protection, Restoration, and Enhancement of Tricolored Blackbird Habitat on Agricultural Lands.


Report by Audubon California to the Natural Resources Conservation Service, May 19, 2015 to September 30, 2015.

Agreement No: 68-9104-5-261

Detection, monitoring, and fates of Tricolored Blackbird colonies in California in 2015.


This is the final report of the 2015 field season submitted by Bob Meese, under contract to the California Department of Fish and Wildlife and with financial support provided by the JiJi Foundation.

Final Report, CF&G, USFWS, 1993

This is the final report of William J. Hamilton III submitted to the California Department of Fish and Game (now Fish and Wildlife) and the U.S. Fish and Wildlife Service that describes field work conducted on tricolored blackbirds during their 1993 breeding season.

2014 Statewide Survey Final Report


Final report of the 2014 Tricolored Blackbird Statewide Survey by statewide survey coordinator Bob Meese.

Population structure of the Tricolored Blackbird (Agelaius tricolor) in California: are northern and southern populations genetically distinct?


This report, by Elena Berg, John Pollinger, and Tom Smith of the Center for Tropical Research at UCLA, provides the results of their analysis of the genetic structure within tricolors to help evaluate whether there is a single genetically homogenous population to conserve, or instead whether there are indeed two (or more) distinct populations that should be managed separately. Their analysis showed that there were some unique alleles in southern California but that there was not sufficient genetic differentiation to consider the southern California population a genetically distinct evolutionary unit from the Central Valley or Kern River Valley populations.

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