New York Natural Heritage Program
Tricolored Heron
Egretta tricolor (Müller, 1776)
Birds

Threats [-]
Degradation of breeding and foraging habitat is the greatest threat to tricolored herons (McCrimmon 2006). Other threats include flooding, development, disturbance of nesting areas by human activity such as boating, fishing, dredge spoil deposition, and predation primarily by gulls, fox, and raccoons (Frederick 1997; New York Natural Heritage Program 2009).

Conservation Strategies and Management Practices [-]
Continue to develop and conduct management and habitat restoration plans with state, local, and federal partners. Continue to monitor populations and discuss ways to improve survey methods. Compare state population trends against regional trends to determine population dynamics across various geographic areas and time periods. Consider developing and initiating a banding program to get a better handle on breeding populations and migratory patterns (Frederick 1997; McCrimmon 2006).

Research Needs [-]
Although the tricolored heron is a much-studied heron, little is known about populations in New York. In general, more information is needed regarding life history and behavior, especially during the first year of life, in order to better protect this species (Frederick 1997). Research and identify key habitat characteristics necessary for breeding, foraging, and wintering areas. Identify all potential threats including those created by human disturbance as well as predators, pathogens, and invasive species, and seek ways to diminish their impact (McCrimmon 2006).