A question of jurisdiction has killed the latest court challenge to the Bloomberg administration’s plans for a marine trash-transfer facility across Flushing Bay from LaGuardia Airport.

Dashing the hopes of opponents who claimed the transfer station would attract birds that would endanger aircraft, the U.S. Court of Appeals for the Second Circuit said a Federal Aviation Administration letter urging New York City to adopt recommendations to keep birds from congregating was not a "final order" that it could review.