No, it's not my age or my weight, you smart-alecs! It's not my shoe size or my I.Q. It's not even the total number of birds on my Life List, though I am working towards that goal. No, 400 is the number of posts I have put up on this blog.
Can you believe you have wasted so much time here? As a reward, here is a recent photo of four Blue Jays at my ground feeder - one for each of the one hundred posts I have done.