Lyric discussion by regretably 

i honestly think this is at least inspired by him breaking up with kate moss.

the lyrics are definitely "a bird is just a burden to your heart, your soul..." in British/London slang, "bird" is the term for a girl. so basically he's using aliteration to say that girls/having a girl is just a burden.

"i lost my phone in paradise" if it is anything about kate, they were in staying in Africa, and that's where he met another girl and evidently cheated on her.

but yes, the bird thing.

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