Female preference for nests with eggs is based on the presence of the eggs themselves
Kraak, S.B.M.; Groothuis, T.G.G. (1994). Female preference for nests with eggs is based on the presence of the eggs themselves. Behaviour (Leiden) 131: 189-206
In: Behaviour (Leiden). Brill: Leiden. ISSN 0005-7959; e-ISSN 1568-539X, more