It is and it isn't
Its a very bad omen for the pigeon.
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.
In different societies and cultures, bats have been regarded by some as a "good omen" and others as a "bad omen".
It's not an omen it is carelessness or bad luck.
It is not any kind of omen.
No, it's just a bird doing what nature programmed it to do.
For their dark color and tendency to feast on carrion (especially after battles) crows are generally considered a bad omen
There is currently no evidence to support that a dead fox was either a bad or good omen.
good or bad
An omen seeker is someone who looks for an omen, which is a sign, that is either good or bad to seek out what the future will be like.
Not if your trust the Lord. If you trust the Lord there is no such thing as an omen or luck, good or bad.
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.