Tricoloured heron (Egretta tricolor) bringing food to its chick in nest on a Mangrove island, Alafia Banks Bird Sanctuary, Sunken Island, Tampa Bay, Florida, USA., BIRDS,CHICKS,COASTS,FEEDING,HERONS,MANGROVES,MANGROVE SWAMPS,PARENTAL BEHAVIOUR,RESERVE,USA,VERTEBRATES,WINGS,North America, Tim Laman