SHORT COMMUNICATIONS 
635 
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The Wilson Journal of Ornithology 123(3):635—638, 2011 
Nest Reuse by the Scintillant Hummingbird (Selasphorus scintilla ) 
Emilia Triana 1 and Luis Sandoval 1 ’ 2 ’ 3 
ABSTRACT.—Nest reuse behavior in birds is rare 
because nests are ephemeral structures. We describe the 
,lrs{ record of multi-season nest reuse by ihe Scintillant 
Hummingbird ( Selasphorus scintilla). The nest was a 
multi-cup of four nests with newer nests placed on top 
"I older nests. The nest was under the eave of a roof, 
which may have reduced nest disintegration and 
facilitated nest reuse. Received 19 November 2010. 
Accepted 19 March 2011. 
Escuela de Biologia, Universidad de Costa Rica. 2060 
San Pedro de Montes de Oca, San Jos£. Costa Rica. 
Current address: Department of Biological Sciences. 
University of Windsor, 401 Sunset Avenue. Windsor. ON 
N9B3P4, Canada. 
Corresponding author; 
e -mail: biosandoval@hotmail.com 
Reuse of nests is an uncommon behavior by 
birds mainly because the nest structure remains 
intact only for a short period of time after the bird 
leaves the breeding area (Skutch 1976, Bertolero 
2002). except for cavities (e.g.. wood, termitaria, 
and earth) that persist (Aitken et al. 2002, 
Sandoval and Barrantes 2009). The vegetal 
material of a nest and weather conditions, such 
as rainfall and wind, disintegrate the nest rapidly 
and prevent successive use, even in the same 
season if tune between nest attempts is lengthy 
(Aguilar and Marini 2007). Another lactor that 
may prevent or reduce nest reuse is persistence of 
parasites in old nesting material. Parasites feed on 
nestlings when the nest is reused, resulting in 
reduced reproductive success (Moss and Camtn 
1970. Barclay 1988, Rendell and Verbeek 1996). 
