- Real Name: Jay Abrams
- Alias: Blue Jay
- Identity: Secret
- Alignment: Good
- Gender: Male
- Hair: Black, Eyes: Grey
- Occupation: Crimefighter
- Family: Not known
- Affiliations: Champions of Angor; Justice League; Justice League of America; Justice League Europe; Justice League International; Legion of Substitute Heroes (Pre-Zero Hour); Assemblers; Justifiers
- First appearance: Justice League of America #87 (February, 1971)
Blue Jay was a former member of the Champions of Angor. His real name was Jay Abrams. He could shrink to seven inches tall, and grow blue wings which allowed him to fly. He survived the destruction of his home world of Angor, then he came to Earth, where he was a member of the Justice League for a while, and was even the leader of the European branch of the League. The three primary members of the Champions of Angor to survive the trip to Earth were Blue Jay, Silver Sorceress, and Wandjina.
Blue Jay was frequently regarded during his tenure in the JLI as its weakest member, and was often treated as an inferior hero who spent most of his time wracked with self-doubt. At one point, he was flung into the future and turned down for membership to the Legion of Super Heroes because he was "just Shrinking Violet with Wings". His inclusion as a member of the Legion of Substitute Heroes only became the newest version of a punchline that kept getting repeated ad nausea.
Following the death of Silver Sorceress, Blue Jay became the sole survivor of Angor. He was kidnapped by acquisitive aliens, along with several other metahumans (including Superman, Livewire, and Aquaman). He and the others were able to escape and stop the aliens.
Blue Jay was later abducted by the New Gods doppleganger Doctor Impossible and the Crime Syndicate of Amerika, and was used as a component in a Multiversal machine that they had planned to use to resurrect Darkseid. This plot went awry when the machine instead gave birth to a new villain calling himself Omega Man. During the subsequent battle between the JLA and Omega Man, Blue Jay was rescued from his prison by Supergirl. After defeating Omega Man and banishing the Syndicate to their respective universe, Blue Jay chose to fly off into the Multiverse, as he explained that while he was never respected or considered useful on Earth, there might be another Earth out there where he could finally become a true hero.