Parakeets flash by .
A vulture circles above, patiently waiting for its next meal. The fork-tailed tern screams like a banshee before diving like a bomber to catch its prey. A hoopoe, with its slender, downward-curving bill, putters around looking for grubs. And long-legged storks wade through shallow waters, playing the decision close to the vest right down to the wire before snapping up fish.