Annual report.

Nest box 12.           2004.
Built-in observation box
The nest box northerly
Results
 
Nest box occupied

  On 29-06, nest box 12 will be occupied for the whole season. We see that one of two Common Swifts regular changes the sleeping place. This behaviour, witch we concluded also other years, probably is to make an inventory of the available nest-places in the colony. This could be give security for the bird to have a nest-place, if he/she lost, in the future, his own place.
   
05-05  1 Common Swift stays the night in the nest box. (See logbook nest box 10. Date 05-05)
   
29-06  1 Common Swift stays the night in the nest box.
01-07  2 Common Swifts stay the night in the nest box.
02-07  Observation; 21:40 1 Common Swift sits in the nest box. In nest box 11 sits a very agitated Common Swift. While outside it is already dark, this bird leaves, between 22:30 and 23:00, the nest box for 5 times. Every time he/she comes into nest box 11, booth Common Swifts are calling. After he/she also hitched on nest box 10 and 14, this bird stays the night in nest box 11.
03-07  Observation; 08:03 2 Common Swift sitting on the nest.
22:30 2 Common Swifts stay the night in the nest box.
07-07  Observation; 1 Common Swift stays the night in nest box 11. Now, the Common Swift is quiet and beams self-confidence, sits calm on the nest and works with some little feathers.
08-07  Observation; 2 Common Swifts stay the night in the nest box.

Probably the same Common Swift stays the night again in nest box 11 on 13-07 and 19-07.
18-07 he/she stays the night in nest box 9. Probably the birdwatch system has registered his activity in this nest box from 17 until 21 July. (See report box 9 2004.)
The last 11 days of the season, both birds stay the night in the nest box.

31-07  Booth Common Swifts don't come back in the nest box.
   

■ summery ■

 

 

 

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