The days get longer and spring progresses in spite of the weather in some locations. A quick peek at the radar for Sunday night shows the telltale signs of migrants moving north.
The composition of these flocks is unknown but the obvious candidates are waterfowl, blackbirds and some of the early songbird migrants. Is anyone down in Florida or Texas seeing any indication of birds moving?
With time, these radar signatures will become stronger (larger and different in color) and they will appear further north. What you should look for if you are checking the radar are what look like colored rings around every Doppler radar station where birds are moving. For those of us in the north this is just a tease for what we'll be seeing locally in a month or six weeks.
Keep looking up!