We had similar sayings around the number of crows you'd see together. As I got older, I realized if you spend enough time outside you'll see any combination of crows you might need to fit the rhyme and have a little talk.
One for sorrow, Two for joy, Three for a girl, Four for a boy, Five for silver, Six for gold, Seven for a secret never to be told.
We would say "Crow" instead of "for".
https://en.wikipedia.org/wiki/One_for_Sorrow_%28nursery_rhym...
Huh - I know these numbers from a Counting Crows song (“A Murder of One”, one of my favorites). Never knew this came from cultural heritage.
Interesting, in the UK I know this for magpies but I also know some additional lines which are absent from the Wiki page…
One for sorrow, two for joy, three for a girl, four for a boy, five for silver, six for gold, seven for a secret never to be told, eight for a wish, nine for a kiss, ten for a bird you must not miss.
EDIT: It seems the 8/9/10 lines are from Magpie, a British children’s TV show: https://en.m.wikipedia.org/wiki/Magpie_(TV_series)#Theme_son...
In rural England I've heard of that for magpies (which are corvids I think), but never crows themselves.
Someone I know from Scotland sings a song with the same sort of pattern but about crows proper (like 'Ten green bottles' but for crows - "the last craw wasna' there at a'").
Does the Grouse know? Probably not. The grandmother would though.