Herman Bouman:
Common Swift / Apus apus / Gierzwaluw
Herman Bouman:
Common Swift / Apus apus / Gierzwaluw
Herman Bouman:
Common Swift / Apus apus / Gierzwaluw
Herman Bouman:
Common Swift / Apus apus / Gierzwaluw
Herman Bouman:
Common Swift / Apus apus / Gierzwaluw
Herman Bouman:
Common Swift / Apus apus / Gierzwaluw
Herman Bouman:
Common Swift / Apus apus / Gierzwaluw
Herman Bouman:
Common Swift / Apus apus / Gierzwaluw
Herman Bouman:
Common Swift / Apus apus / Gierzwaluw
Herman Bouman:
Common Swift / Apus apus / Gierzwaluw
Herman Bouman:
Common Swift / Apus apus / Gierzwaluw
Herman Bouman:
Common Swift / Apus apus / Gierzwaluw
Herman Bouman:
Common Swift / Apus apus / Gierzwaluw
Herman Bouman:
Common Swift / Apus apus / Gierzwaluw
Herman Bouman:
Common Swift / Apus apus / Gierzwaluw
Herman Bouman:
Common Swift / Apus apus / Gierzwaluw
Herman Bouman:
Common Swift / Apus apus / Gierzwaluw
Herman Bouman:
Common Swift / Apus apus / Gierzwaluw
Herman Bouman:
Common Swift / Apus apus / Gierzwaluw
Herman Bouman:
Common Swift / Apus apus / Gierzwaluw
Herman Bouman:
Common Swift / Apus apus / Gierzwaluw
Herman Bouman:
Common Swift / Apus apus / Gierzwaluw juvenile
Herman Bouman:
Swift / Apus apus / Gierzwaluw (braakbal)