An article describing the biology and conservation of tricolored blackbirds was published in the Spring, 2019 issue of Cornell University's Living Bird Magazine.  The article, written by author Ben Goldfarb, highlights the unique biology of the species, the history of efforts to study it, the threats to its survival, and the work of the Tricolored Blackbird Working Group to conserve it.  You can read the on-line version of the article here.