Birdlings Flat, originally named Te Mata Hapuku, is a settlement in Canterbury, New Zealand, at the eastern end of Kaitorete Spit and the southern end of Lake Forsyth, where the lake discharges to the sea. It is not far from eastern end of Lake Ellesmere/ Te Waihora. The name Birdlings Flat is also commonly used for the nearby pebble beach on the ocean side of Kaitorete Spit. The beach is well known as a place to find small agates and a variety of other attractive rounded pebbles.