PeerJ Author 170 Points Contributions by role Author 100 Preprint Author 70 Contributions by subject area Ecology Zoology Robyn L Bailey PeerJ Author Summary Conservation Biology Ecology Editorial Board Member Past or current institution affiliations Cornell University Work details Project Leader, NestWatch Cornell Lab of Ornithology Citizen Science PeerJ Contributions Articles 1 Preprints 1 March 11, 2014 Occurrence of twin embryos in the eastern bluebird Robyn L. Bailey, Gerald E. Clark https://doi.org/10.7717/peerj.273 PubMed 24688852 March 11, 2014 - Version: 2 Occurrence of twin embryos in the eastern bluebird Robyn L. Bailey, Gerald E. Clark https://doi.org/10.7287/peerj.preprints.186v2