Besides, who pays that much attention to what's going on in the yard in the dead of winter, when it's cold and miserable out there. It can be a nuisance to trudge outside, into the cold weather to check to see if the bird feeders need filling.
(Actually, if you can't see them from your window, then it is more of a bother, and what's more, you're missing out on watching the birds at your feeders.)
So...this is just one of those little reminders.
Need more information on feeding the birds?