Birdsongs

2 clues
High notes?
Series of tweets?
Similar answers:
Aaronbirdie
Abetsongs
Abird
Abirdinthehand
Abirdinthesand
Abirds
Abirdseyeview
Abraceofbirds
Africanbird
Ahandinthebird
Alertwaterbirds
Alittlebird
Alittlebirdie
Alittlebirdtold
Alongcameabird
Alongstringofhitsongs
Alowdownbirdieshame
Angelbirdcollar
Angrybirds
Arequiemforhispetbird