
Brown booby (female)
Normally the booby flies with its tail straight and tapered. This one has its tail fanned which is throwing me a bit off, but in all other respects it is a female booby...unless someone has another suggestion. Perhaps she is using her tail to slow down.
The brown booby is a large seabird of the booby family, "Sulidae". They present sexual dimorphism. The female booby reaches about 80 centimetres in length, its wingspan measures up to 150 cm, and they can weigh up to 1,300 g. The male booby reaches about 75 centimetres in length, its wingspan measures up to 140 cm, and they can weigh up to 1,000 g.