The Starling was a small American nuclear bomb developed in the 1950s that was used as the primary in several US thermonuclear weapons.
The Starling was developed by Lawrence Livermore National Laboratory. According to researcher Chuck Hansen, it was 11.53inch in diameter, 14.25inch in length, and had a weight of 86.4lb.[1] As tested in Nougat Cimarron, the primary had a yield of 5to[2] but is also described as being 10to.[1] It was a two-point primary, like Tsetse, Kinglet, Robin, and Gnat.[1]
Starling is reportedly the primary for the W55 (which also used Kinglet) and W56 warheads.[3] Starling and Kinglet are reportedly the immediate successors to Robin.[4]