Omens....

I have been studying, and trying to connect to my spirit guides is a lesson from not long ago. I have taken ritual bath(s), after grounding, and have been working on soul retrieval to heal several parts of my shadow that I know need dealt with. Question is this.... I have always been fond of Crow, and often time Crow comes for a visit. After questioning this, I learned that when Crow appears, more than likely a change is soon to follow. I never really gave much a thought to omens, but now they seem to be on the forefront of my mind. After trying to seek out my spirit guide(s), I have encountered several things that struck me as "odd". Maybe I am just not catching on and the guides are trying to "hit me in the face" so-to-speak, but I have been approached by a snake, and after picking it up and throwing it to the field across the way, well.... it came back. Needless to say, I have just left it alone, and it has taken up residence underneath a lavender bush by the front steps. I also came home to find a frog (it was dead) sitting on the front step. It looked completely intact, and did not look as if something killed it. It was like it was sitting there sleeping. I have also been over run by hummingbirds. They are flying into the garage, perching on the chairs on the front porch, and now I have gnats. And I don't mean a couple. I am talking... I came home from work to find about 30 in my house. Of course the cat was trying to catch them to no avail, but all of this happened in about a 2 week period. First the hummingbirds, then the frog, then 2 days later the snake, and now the gnats. And I know that whenever I see Crow, usually a change happens not too much later (i.e. a death of a pet or accquaintance, my daughter had a car wreck, but also good things happen too). I think maybe Crow is a spirit guide ? But how do you know for sure of these other things ? I am interested in learning more about omens as I would love to know what these other things mean. The more I study and practice this path, it is like my eyes are very open to these things happening around me. I often wonder if they were happening all along, but now I am just more aware of them? Any ideas anyone ?