@misc{indiciaef47b2471c4d2,
  title = {Castration does not decrease nonreproductive aggression in yearling male European starlings (Sturnus vulgaris).},
  author = {Rianne Pinxten and Elke De Ridder and Maarten De Cock and Marcel Eens},
  year = {2003},
  doi = {10.1016/s0018-506x(03)00012-6},
  url = {https://pubmed.ncbi.nlm.nih.gov/12695113/},
  note = {Source identifier: 12695113}
}