The eBird enterprise: An integrated approach to development and application of citizen scienceBrian L. Sullivan, Steve Kelling, Caren B. Cooper et al.|Biological Conservation|2013Cited by 1.1k
The Design of Artificial Nestboxes for the Study of Secondary Hole-Nesting Birds: A Review of Methodological Inconsistencies and Potential BiasesMarcel M. Lambrechts, Ian Stewart, Alberto Sorace et al.|Acta Ornithologica|2010Cited by 337