The same recording is on Spotify within an album called
Britxotica! - London's Rarest Primitive Pop and Savage Jazz.
It sounds cleaner and brighter on Spotify - as though taken from the EMI master tape rather than a disc dub.
The lyric line seems to vary between
while I was bringing home a lion from the zoo and bringing home a lion for the zoo.
Only the second variation makes sense.
As soon as I heard The Shadows' version in '64 or '65, I knew I'd heard the tune on the radio years before. I'd had the same reaction on hearing
The Bandit.