Shorebird use of Estero Santa Cruz: abundance, diversity and conservation implications

Shorebird Abundance of Estero Santa Cruz ,
Shorebird Abundance of Estero Santa Cruz

Shorebird Abundance of Estero Santa Cruz ,

Project Description

Estero Santa Cruz is situated along the Pacific Flyway, and currently acts as an important migratory corridor. Shorebirds that nest in northwestern North America pass through and winter in the Gulf of California. Estero Santa Cruz lies between two important shorebird habitats, the delta region of the Rio Colorado and the extensive mudflats of Ensenada Pabellones and Bahía Santa Maria, Sinaloa, approximately 1,000 km south of the Delta. This makes it a potentially important stop over site during such long migrations. To determine the abundance and diversity of shorebirds species, Prescott College has conducted systematic shorebird censuses in the northwestern half of the estero for the past 10 years. 




Over the years, 21 species of shorebirds were observed; the maximum count of individuals was 8,631 on 9 April 2008. 


Reports & Publications

  1. Research and Conservation Program Report (2007-2011). Prescott College Kino Bay Center for Cultural and Ecological Studies 

  2. Fleischner, T. L., & Gates, H. R. (2009). Shorebird Use of Estero Santa Cruz, Sonora, México: Abundance, Diversity and Conservation Implications. Waterbirds, 32(1), 36-43. 


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Contact Information

Lorayne Meltzer

Co-director, Research and Conservation Program Coordinator


Ed Boyer



Mail Address:

Prescott College
220 Grove Ave, Prescott, AZ 86301


Kino Bay Center:

151 Calle Cádiz y Puerto Vallarta
Bahía de Kino, Sonora, México

ph: (+52) 662 242 00 24



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