@article{journal,
author = {Rodr{\'i}guez, S. and {\'A}lvarez, E. and Barba, E.},
title = {Factors affecting fledgling output of great tits, Parus major, in the long term},
year = {2016},
volume = {39.2},
pages = {147--154},
journal = {Animal Biodiversity and Conservation},
keywords = {Fledgling production, Nestling survival, Brood size, Long–term study}
}