Who would be amalgamated with Black Canary

songbird

Definitely Mockingbird. She is Marvel's Black Canary... Bird theme. Blonde. Archer fetish. She only lacks the voice.

Similarities with their Allias

They two similiar costumes

Both are very good at Hand to Hand combat and using weapons at combat

Both have a good intellect.

Black Canary has Canary Cry and Black Widow has Widow Bite that stuns and does serious damage to a person and even can kill a person

Black Canary was the Chairwoman of Justice League of America and Black Widow was Leader of Avengers

Both were married

Both are infertile (Black Canary is fértil now due she was healed at Lazarus Pit)

They have evil counterparts White Canary and Black Widow (Yelena Belova)

Team up with Green Arrow/Hawkeye and often works with Batman/Captain America

They are very seductive

They dated Green Arrow/Hawkeye and Black Canary kiss Batman and Hawkeye/Black Widow dated Captain America and Daredevil

Both had black hair.

Songbird.