South Florida is good for birds all year, but it isn't the same all year. The light, the number of birds around, and what they're doing all shift with the seasons. Here's how I think about the calendar, from someone who mostly shoots the same few wetlands over and over.
The short answer: dry season
The dry season runs roughly from November through April, and it's the classic window. As the water level drops, fish and frogs get trapped in shrinking pools, and the birds pile in to feed. Everything concentrates, which means you see more, closer. Winter also brings migrants down from the north, so the variety goes up too.
Winter, November to February
Cooler, drier, and busy with birds. This is prime time for feeding activity and for the sheer number of species around. Mornings can actually be a little chilly by Florida standards, which the birds don't mind at all.
Late winter into spring, February to April
This is nesting season, and it's my favorite stretch. Places like Wakodahatchee turn into rookeries, with herons and wood storks building nests and raising chicks right beside the boardwalk. Birds also come into breeding plumage now, the wispy plumes and brighter colors, like the cattle egret that trades its plain white for buff and a flush of color on the face. If you want chicks and plumage, go now. And go gently, because this is exactly when it matters most to keep your distance from nests.
Summer and early fall, May to October
The wet season. Afternoon storms roll in, the water spreads back out, and the birds disperse because they no longer have to crowd around what little water is left. It's quieter and greener, and the heat and bugs are real. I still go, just earlier and with lower expectations. Early morning is not optional in summer.
Time of day beats time of year
Whatever month it is, the first hour after sunrise is the best hour of the day. Soft light, active birds, and fewer people. Golden hour in the late afternoon is the backup. If you can only get the season right or the hour right, get the hour right.
When you've picked your day, it helps to know where to go and what to bring. More quick answers live on the FAQ.