According to RWBY, being a crow is a curse. It's never explained why it's a bad thing, but it's called a curse nonetheless.
@TheStarHawk, "u dont understand ruby, i CAN TURN INTO A CROW" "but how is that a bad thing i can literally only think of benefits" ".......I CAN TURN INTO A CROW ITS A CURSE RUBY"
@TheStarHawk, In my hometown in Mexico, crows are bad omens and if one stands on your property you must frighten it away in an awful manner. In other words, you cannot just shoo it away, you have to chase it with a broom or throw something at it. Also, they are said to bring death to households that they "choose." In folklore, crows have been trapped im cages and eventually reveal themselves as shapeshifting witches.
@tha5th, I have a murder that comes to visit me almost everyday and they sit in the dead tree in my front yard. I feed them stale breads and other foods I dont want to throw in the trash. They eat then fly away.
@ TouchMyCatEars, they're an invasive species. They even have forward-facing eyes like a bird of prey but they're not. They kill bird eggs of other, smaller species just to drive them out. I don't like crows. Maybe because my mom drilled it into me since I was a child. I don't hate them, just don't like them.
@speedway guy, WHY IS MY NAME SPELLED WITH A Q?!?!?
@The Pun Shielder, thanks jelloapocollypse
@TheStarHawk, Yea they never really explain it beyond “Magic bad” but I guess if you wanna get symbolic with it Crows in most cultures are a symbol of death and misfortune.
@tha5th, I saw one pick the eyes out of a squirrel when it was still alive, and left the body there, didn't even eat it, most brutal thing I've seen
@TheRatMan, Qrows semblance is actually the “causes misfortune” thing. He can turn into an actual crow as well but that’s something that Ozpin gave him because he’s a wizard and can do that.
I’m definitely a crow now. I do all those things
Commit murder when you get together with friends...wait, what
In stardew valley you can turn your children into birds