Herman Bouman:
Little owl / Athene noctua / Steenuil in a willow
Herman Bouman:
Tawny owl / Strix aluco / Bosuil
Herman Bouman:
Little owl / Athene noctua / Steenuil
Herman Bouman:
Barn owl / Tyto alba / Kerkuil wintering in building
Herman Bouman:
short-eared owl / Asio flammeus / Velduil
Herman Bouman:
short-eared owl / Asio flammeus / Velduil
Herman Bouman:
Long-eared owl / Asio otus / Ransuil
Herman Bouman:
Little owl / Athene noctua / Steenuil
Herman Bouman:
Little owl / Athene noctua / Steenuil
Herman Bouman:
Northern Hawk-Owl / Surnia ulula / Sperweruil
Herman Bouman:
Northern Hawk-Owl / Surnia ulula / Sperweruil
Herman Bouman:
Northern Hawk-Owl / Surnia ulula / Sperweruil
Herman Bouman:
Northern Hawk-Owl / Surnia ulula / Sperweruil
Herman Bouman:
Long-eared owl / Asio otus / Ransuil
Herman Bouman:
Long-eared owl / Asio otus / Ransuil
Herman Bouman:
Long-eared owl / Asio otus / Ransuil
Herman Bouman:
Long-eared owl / Asio otus / Ransuil
Herman Bouman:
Long-eared owl / Asio otus / Ransuil
Herman Bouman:
Long-eared owl / Asio otus / Ransuil
Herman Bouman:
Long-eared owl / Asio otus / Ransuil
Herman Bouman:
Little owl / Athene noctua / Steenuil
Herman Bouman:
Little owl / Athene noctua / Steenuil
Herman Bouman:
Little owl / Athene noctua / Steenuil
Herman Bouman:
Little owl / Athene noctua / Steenuil
Herman Bouman:
Little owl / Athene noctua / Steenuil
Herman Bouman:
Little owl / Athene noctua / Steenuil
Herman Bouman:
Short-eared owl / Asio flammeus / Velduil
Herman Bouman:
Short-eared owl / Asio flammeus / Velduil
Herman Bouman:
Long-eared Owl / Asio otus / Ransuil
Herman Bouman:
Barn owl / Tyto alba / Kerkuil
