THE CHASE (Time - 12:05:44). Like romance in most other species, this ritual started with a courtship - the female swims around the pond and the male tails it, both making sweet quack-quacks.
I presumed that the smaller duck at left is the female, and the one at right is the male ("he" will mount "her" later).
Philippine Duck
(a Philippine endemic)
Scientific name - Anas luzonica
Habitat - Freshwater marshes, shallow lakes and ricefields.
[20D+ 500 f4 L IS + stacked Canon/Tamron 1.4x TCs, 1000 mm, f/11, bean bag]