I think if you dig a little deeper, you'll find that "Birdland" was actually a R&B Club on Jackson St. in Seattle, WA.
Most people had no idea there was a jumpin’ jazz scene down on Jackson Street from the 1920s through the 1950s, but during the boom years around World War II, more than 30 nightclubs sprang up along Jackson.
There were segregated musicians' unions. White musicians played in uptown ballrooms while black musicians mainly found work in small after-hours nightclubs along Jackson Street.
It was here that up-and-coming jazz stars like Quincy Jones, Ernestine Anderson and Ray Charles got their start.
In the mid-1950s, certain local young jazz musicians like Frank Roberts took up R&B, and jazz spots started to have R&B nights. The club "Birdland" began to feature national acts, local R&B, a house band led by Dave Lewis, and jam sessions that were popular with top local players. The club became the center of a horn-and keyboard-heavy R&B sound that eventually became the soul of Northwest rock.
IMHO, the lyric speaks for itself...she could party all night long at "The Birdland".