This reminds me of a mother who lost her son from brain cancer. She went to his grave on the anniversary of his death. A red robin kept her company during her visit. The bird wasn't afraid of her, even came perching on her fingers. Here's the video: Mom Brought To Tears When Wild Bird Comforts Her While Visiting Son's Grave
The only time I came across a feather was on my way to college. I was walking on the sidewalk until I noticed a brown feather. I picked it up and quickly identified the bird. It was from a robin. I took it home after class. I have it placed on my dragon fountain statue. I checked here
for the meaning of the brown feather.