Hello. I need information about the territorial behavior of Fringilla coelebs to compare with my data. Does anyone know a good article to help me define an area? Thank you
Information on the territory density in the forest in Poland you can find in:
Kania W. 1968. Ptaki południowo-wschodniej części Puszczy Niepołomickiej [Birds of the south-eastern part of the Niepołomice Forest]. Polish with English summary (full translation by Smithsonian Institution: Birds of the Southeastern area of Niepołomice Forest). Acta ornithologica. 11, 4: 61-86.
Now I can send you the original publication, the English translation in a few days.