title: Behavioural ecology: hidden benefits revealed.
abstract: In the cooperatively breeding superb fairy-wren, helpers have negligible effect on breeding success. So why help? The answer is hidden in the size of the eggs.
authors.affiliation: Institute of Evolutionary Biology, University of Edinburgh, Ashworth Laboratories, Kings Buildings, West Mains Road, Edinburgh EH9 3JT, UK. a.griffin@ed.ac.uk
authors.forename: Ashleigh
authors.initials: A
authors.lastname: Griffin
mesh_terms: D000818:Animals; D001947:Breeding; D004463:Ecology; D005260:Female; D006379:Helping Behavior; D008297:Male; D009425:Nesting Behavior; D020308:Songbirds / Q000502:physiology*