Well it depends if your really believe in fairies. If you do most people believe fairies to be good
We were planning for a picnic, but the dark clouds seemed like a bad omen.
Here is an example sentence with the word 'omen':An eclipse is often seen as a bad omen back in the ancient times.
What you are talking about is called Lechuza and it's a bad omen. The two times I have seen Lechuza bad things have happened.
A comet was seen
The word omen is not a bad word
fairies do not exist .the people who say that they have seen fairies have actually seen an illusion .
This can be a good or bad omen. If you don't like bees it is a bad omen however if you appreciate their role in nature it can be a good omen.
It's not an omen it is carelessness or bad luck.
In different societies and cultures, bats have been regarded by some as a "good omen" and others as a "bad omen".
There is no such thing as bad fairies. Only good.
For their dark color and tendency to feast on carrion (especially after battles) crows are generally considered a bad omen
Yes an Omen can come in many forms.