|Photo: J. Bos|
|Photo G. Tavecchia: A gull equipped with a GSM/GPS device|
|Photo J. Bos.|
|Photo J. Bos: A gull defending its nest|
Gulls use to attack intruders, especially near the hatching period. It is a good occasion to make some pictures and read the ring.
Can you read the ring code?
|Photo J. Bos: Gulls behind a trawler|