Related Clues:
- Quick changes of pitches
- Alpine outbursts
- Parrots from city gardens
- Vocalizes Alpine-style
- Voices agreement with
- Returned calls from city dwellings miles away
- Some Alpine echoes
- In Switzerland, calls to finish contemporary toys starting off
- Sings high?
- Empty stadium sounds
- Empty room phenomena
- Sounds heard in canyons
- Uses falsetto, in a way
- Sounds repeated by its waves striking a surface and coming back
- Makes a comeback?