Annual report.

Nest box 9.           2006.
Built-in observation box
The nest box northerly
 
 
 

  Common Swifts didn’t occupy this nest box last year. It seems it’s too difficult for Common Swifts to make a different between 2 entrances, so clothes that they can’t tell them apart.

By the way it isn’t that they can’t find the entrance, the detect system noticed for 114 times a Common Swift that hitched on. We our self have seen that, for a different times, hitched on Common Swift goes into the entrance for the half.

On 28 and 29 April the new partner of nest box 10 goes into the nest box for different times. By this you can see again the difficulty of the entrance.

On May 19 and 22 a Common Swift goes into the nest box for different times. It was one of the 2 Common Swifts of nest box 10, he had so much nesting material with him that he can’t see enough to know which nest box he must go in.

   

■ summery ■

 

 

 

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