Another example of an early bird sound. No idea how it was produced, somebody probably whistled.
Listen to 1939_saperaa_04_pee-pee-pee-Daal-Daal.mp3
Another example of an early bird sound. No idea how it was produced, somebody probably whistled.
Listen to 1939_saperaa_04_pee-pee-pee-Daal-Daal.mp3