Pavel Pelz
Kalous pustovka
Pavel Pelz
Otus scops 5: Trills of owlets and beak snapping
Pavel Pelz
Asio otus 4: Disturbed bird near the nest
Pavel Pelz
Glaucidium passerinum 6: "Winter call" of both sexes outside breeding season
Pavel Pelz
Aegolius funereus 4: Calls of male in danger, silent calls of female in the backgroudn
Pavel Pelz
Strix uralensis 6: Voices of owlets in the nest
Pavel Pelz
Glaucidium passerinum 1: Territorial sound of male
Pavel Pelz
Aegolius funereus 7: Contacting of the owlets leaving the nest-hole
Pavel Pelz
Otus scops 4: Adult bird snapping its beak in defence. Whistles of male in the background
Pavel Pelz
Bubo bubo 2: Female and male
Pavel Pelz
Strix uralensis 5: Reaction to the presence of man near the nest
Pavel Pelz
Athene noctua 1: Territorial call of male
Pavel Pelz
Strix aluco 2: Two males on the border of their territories
Pavel Pelz
Athene noctua 2: Another territorial males' call
Pavel Pelz
Asio flammeus 3: Alarming calls of owlets in the nest and call of female in the background
Pavel Pelz
Bubo bubo 6: Contacting voices of owlets after leaving the nest
Pavel Pelz
Athene noctua 7: Other alarming sounds of male
Pavel Pelz
Surnia ulula 1: Mating calls of male
Pavel Pelz
Strix aluco 4: Calling female and voice of excited male
Pavel Pelz
Glaucidium passerinum 4: Worried pair in the proximity of the nest-hole
Pavel Pelz
Strix nebulosa 2: Contacting calls of female on the nest. Lower voice of male in the backgroudn
Pavel Pelz
Tyto Alba 3: Hissing of elder and trills of younger owlets in the nest
Pavel Pelz
Asio flammeus 1: Territorial calls of male and wings-clapping during courtship flight
Pavel Pelz
Bubo scandiacus 3: Owlets begging for the food and lower voice of female
Pavel Pelz
Strix aluco 5: Contacting call of female
Pavel Pelz
Strix nebulosa 3: Begging owlet
Pavel Pelz
Aegolius funereus 1: Territorial calls of male
Pavel Pelz
Tyto Alba 2: Female's trill before owlets feeding
Pavel Pelz
Athene noctua 5: Females' reaction to the human presence close to the nest
Pavel Pelz
Glaucidium passerinum 5: Untypical call of the disturbed male
Pavel Pelz
Glaucidium passerinum 2: Excited male annoyed with another male
Pavel Pelz
Glaucidium passerinum 7: Contacting voices of two birds outside breeding season
Pavel Pelz
Bubo bubo 5: Owlets begging for food; voice of female in the background
Pavel Pelz
Asio otus 8: Fresh flying owlets after leaving the nest
Pavel Pelz
Bubo scandiacus 1: Female and hooting male
Pavel Pelz
Strix aluco 7: Contacting call of the female in the nest
Pavel Pelz
Asio otus 5: Alarming call
Pavel Pelz
Kulíšek nejmenší
Pavel Pelz
Tyto Alba 1: Female contact calls in the foreground and shrieking male in the backround