@InCollection{Baeyens:1997,
author
=
"G.Baeyens and L.Jerzak",
title
=
"Magpie Pica pica",
pages
=
"672--673",
year
=
"1997",
booktitle
=
"The EBCC atlas of European breeding birdstheir distribution and abundance ISBN: 0856610917",
publisher
=
"T & A D Poyser",
address
=
"London",
}