02Swift Apus a 10052011 3482 Oostvoorne,nl NDVS.jpg

Swift Apus a 10052011 Oostvoorne, nl NDvS

03Swifts Apus apus nestboxes for - to compensate the loss of nest sites 11072011 Ovoorne,nl NDVS.jpg

Swifts Apus apus nestboxes to compensate the loss of nestsites

11072011 Oostvoorne, nl NDvS

04Swift Apus a 20062011 8810 Oostvoorne,nl NDVS.jpg

Swift Apus a 20062011 Oostvoorne, nl NDvS

05Swift Apus a 20062011 8811 Oostvoorne,nl NDVS.jpg

Swift Apus a 20062011 Oostvoorne, nl NDvS

06Swift Apus a ad 19052011 6130 The Hague,nl NDVS.jpg

Swift Apus a ad 19052011 The Hague, nl NDvS

06Swifts Apus a & renovated roofs which destroyed the breedingsite 11072011 Oostv,nl NDVS.jpg

Swifts Apus a & renovated roofs which destroyed the breedingsite

11072011 Oostvoorne, nl NDvS

07Swift Apus a & nestboxes 11072011 4721 Oostvoorne,nl NDVS.jpg

Swift Apus a & nestboxes 11072011 Oostvoorne, nl NDvS

07Swift Apus a, killed opponent used as nest decoration 11072011 4728 Ovoorne,nl NDVS.jpg

Swift Apus a, killed opponent used as nest decoration

11072011 Oostvoorne, nl NDvS

09Swift juv. Apus apus & mallophagus louse 17072012 Ovoorne,NL c Ellen Sandberg.jpg

Swift juv. Apus apus & mallophagus louse 17072012 Oostvoorne,

nl c Ellen Sandberg

2012-08-19 fledged House Martin Delichon urbica parked

2012-08-19

photo A: Unexpected House Martins Delichon urbica also occupied

nestboxes due to their nests being destroyed by roof renovators

elsewhere. Here is an adult feeding a youngster.

photo B: Young House Martin Delichon urbica in nestbox.

Note that the entrance of the nestbox has been reduced with clay.

photo C: Fledged young House Martin Delichon urbica begging for food,

while temporarily parked in other nestbox than the one it was

born in. His two siblings were parked separately in other nestboxes.