Calf of Man

The Birder's Market | Resource | Bird Observatories | Bird Observatories British Isles |  Calf of Man

Calf of Man

Calf of Man

The Bird Observatory on the Calf was established in 1959 and became an official British Bird Observatory in 1962. From March to November each year wardens live on the Calf, keeping detailed records of migration and of the breeding birds which visit the Island. To record the birds, the wardens must first catch them.
The Heligoland trap is a large tunnel of fine wire mesh with a catching box at one end. The "driver" lightly tapping the nearby vegetation drives the birds into the trap, calling and arm waving. The door flap on the collecting box is closed when the last bird enters, allowing each bird to be carefully removed and placed in soft bags for transporting back to the Observatory. There the wardens record details about the birds, such as species, weight, age, sex and condition. Those which are not already ringed, have a ring placed on their leg. Then they are all released again.
Ringing picture by Tim Bag
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The Birder's Market | Resource | Bird Observatories | Bird Observatories British Isles |  Calf of Man

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