The Birds [Model RSS 321]
The Sinclair ZX Spectrum Cass. by Rabbit Soft.
Not emulated in MAME
[COMPUTER] Sinclair ZX Spectrum Cass.
The Birds © 1983 Rabbit Software
This game was soon re-released under the title 'Bomber Birds'. No explanation was given for the name change but it's likely the game ran into copyright issues with its original name.