a while ago, couple of months, I noticed that the birds and squirrels had vanished. It was empty and quiet in our backyard. We put out seed and food for the critters every morning.
Then all the critters were back, then gone.
I was out on the bike a few weeks ago, turning up at the end of our block to start my ride, I saw a big hawk sitting on a low branch.
the critters were the hawks food, so as they peck at the food in the backyard he flies over, gets one and is on his way.
today is a quiet day, with the critters hiding.