I had a bird go missing one night last fall. She showed up the next day thankfully. Then last week I had two go missing. No blood no tracks nothing. I was assuming they would come back like the others. But then the next night, another 2 birds went missing. And the night after that, another single bird went missing. And after I took my dog out to search, we found a little bit of blood on my porch. Which is weird because the birds got up on the railing and decided they wanted to stay there that night. (I'm assuming they were scared.) But I wasn't to happy about the idea scence all my birds were going missing! So I put them all in the coop. Then my neighbor saw a fox back in the woods. And there is fox tracks leading right up to the coop. Now we have fox traps set up. Hoping they work.