Buzzards checking out my goslings- yikes!

Scary- They had cut the hayfield in front of my house and turkey buzzards were circling and feeding on something the cutters probably got or uncovered for two days.
I had been taking my month old 4 Tufted Buff Goslings out in the fenced dog yard (dogs get locked inside to drool) to graze while I work outside or just inside the door, where I can keep an eye on them, also I go sit with them from time to time.
I was doing something about 200 feet away and saw two buzzards s come low and start circling the goslings area. I ran shouting and waving my arms . The goslings came running over to me and huddled down. I them waved and shouted at he buzzards and they kept circling about 75-100 feet, so I sat with the babies and they huddled against my back (they usually stay about 1-2 feet away, except one who comes close and nibbles my jeans).
Finally, I got my son to come and guard two, while I transported two at a time in a bin, to the garage pen .
Next day, buzzards landed on my front yard around the same time. I watched as they flew away later and circled , then gradually moved north.
I figure , they were looking for dinner, and were diffintely checking out the goslings.
After reading the "Circle the rabbit and kill it story" by another member I changed my time of putting the goslings out.
Now why did I want to live next to a National Forest?