Volume 49, No. 2



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A new breeding colony of Blue-footed Booby Sula nebouxii at Islote González, Archipelago Islas Desventuradas, Chile


Authors

MANUEL MARÍN1,2 & RODRIGO GONZÁLEZ3

1 Natural History Museum of Los Angeles County, Section of Ornithology, 900 Exposition Boulevard, Los Angeles, California 90007, USA
2 Current address: Casilla 15, Melipilla, Chile (mma95@hotmail.com)
3 Santa María 7178, Vitacura, Santiago, Chile


Received 13 January 2021, accepted 02 February 2021

Date Published: 2021/10/15
Date Online: 2021/06/22


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Citation

MARÍN, M. & GONZÁLEZ, R. 2021. A new breeding colony of Blue-footed Booby Sula nebouxii at Islote González, Archipelago Islas Desventuradas, Chile. Marine Ornithology 49: 189-192.


Key words: Blue-footed Booby, Sula nebouxii, breeding, Islas Desventuradas, Chile


Abstract

We describe a new disjunct population of Blue-footed Booby Sula nebouxii at Islote González in the Islas Desventuradas archipelago. Though likely much larger, the population size at the time of our survey was a minimum of 16 breeding pairs. On 14-15 December 2020, two pairs of boobies with nestlings and four pairs with empty nests were found. Likely the species is a recent arrival to the archipelago, perhaps during one of the strong El Niño events between 1970 and 2001 (especially 1982/83, when the species was first recorded in Chile). Blue-footed Booby might also nest on different areas at San Félix Island and some smaller islets around the archipelago, where they would have no nesting-site competition from the larger Masked Booby S. dactylatra.


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