I have noticed in Silverlake there are always signs of early spring. As a beekeeper you should make yourself aware of the early spring indicators.
Here are mine. This is the first to bloom and the bees love these cactus. Over the next three weeks the blooms on these cactus really fill out. You might be able to see the bees on the close up.
I will keep you updated with more pics as the flowers develop. Also the other indicator is the Peach tree in the Chinatown garden. I checked today it is about 3 weeks away from blooming. Drive around your bee locations and make yourself aware of what is in bloom!