a fiend who grew up in roby near liverpool told me of a bad experience she had as a young schoolgirl in a spelling test.

when the teacher inspected her spellings, she'd been told off for spelling 'eagle' as 'eagull'. she said she thought the speling would be like 'seagull'. people in her locality would have pronounced 'eagle' to rhyme with 'seagull', hence 'eagull'

daft, isn'it!