Sometimes you have to do things when they occur to you or miss the moment.
I find that to be particularly true in the garden.
An important part of gardening for me is creating a landscape that is both beautiful and that contributes to its environment. Feeding the birds is an enjoyable obligation. I have the resources and the time if I choose to and those little Chickadees deserve my respect...how those tiny things do not freeze is one of nature's miracles.