| Pavel Pelz - Strix aluco 9 Older youngs outside the nest |
| Pavel Pelz - Strix uralensis 1 Hooting male |
| Pavel Pelz - Strix uralensis 2 Hooting male in the vicinity of |
| Pavel Pelz - Strix uralensis 3 Contacting call of the female near |
| Pavel Pelz - Strix uralensis 4 Call of female in the vicinity |
| Pavel Pelz - Strix uralensis 5 Reaction to the presence of man |
| Pavel Pelz - Strix uralensis 6 Voices of owlets in the nest |
| Pavel Pelz - Strix nebulosa 1 Mating calls of male, beak snapping |
| Pavel Pelz - Strix nebulosa 2 Contacting calls of female on the |
| Pavel Pelz - Strix nebulosa 3 Begging owlet |
| Pavel Pelz - 59 Asio otus 1.mp3 |
| Pavel Pelz - Asio otus 2 Two males at the border of their territories |
| Pavel Pelz - Asio otus 3 Contacting call of female near the nest |
| Pavel Pelz - Asio otus 4 Disturbed bird near the nest |
| Pavel Pelz - Asio otus 5 Alarming call |
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