Herman Bouman:
Great tit / Parus major / Koolmees with a datalogger radiotag
Herman Bouman:
Great tit / Parus major / Koolmees with a datalogger radiotag
Herman Bouman:
Great tit / Parus major / Koolmees with a datalogger radiotag
Herman Bouman:
Great tit / Parus major / Koolmees with a datalogger radiotag
Herman Bouman:
Crested tit / Lophophanes cristatus / Kuifmees
Herman Bouman:
Marsh Tit / Poecile palustris / Glanskop
Herman Bouman:
Marsh Tit / Poecile palustris / Glanskop