A flock of great egrets (Ardeaalba) takes flight in Candaba marsh; and a purple heron(Ardea purpurea
) noisily flaps around (Gregg Yan/Best Alternatives)
Until recently, at Aracinovsko Blato and Katlanovsko Blato during winter there could be seen flocks of over 2,000 mallards (Anas platyrhynchos), 1,500 common cranes (Grus grus), grey herons (Ardea cinerea), purple herons (Ardea purpurea
), greylag geese (Anser anser), western marsh harriers (Circus aeruginosus)--birds of prey and the worst enemies to all types of wetland birds, and white storks (Ciconia ciconia).
On the contrary, the lowest bird densities were noted in Common Flameback - Dinopium javanense (0.38 +- 0.16 birds/ha), Red Junglefowl - Gallus gallus (0.34 +- 0.13 birds/ha), Black-shouldered Kite - Elanus caeruleus (0.27 +- 0.14 birds/ha), Purple Heron - Ardea purpurea (0.27 +- 0.13 birds/ha) and Greater Coucal - Centropus sinensis (0.25 +- 0.15 birds/ha) in the dryland habitat.
Whereas, Pied Triller - Lalage nigra (0.33 +- 0.11 birds/ha), Common Iora - Aegithina tiphia (0.31 +- 0.15 birds/ha), Blue-tailed Bee- eater - Merops philippinus (0.28 +- 0.16 birds/ha), Large- billed Crow - Corvus macrorhynchos (0.23 +- 0.11 birds/ha) and Purple Heron - Ardea purpurea (0.19 +- 0.09 birds/ha) were the five rarest species in this habitat.
The first egg-laying date was delayed when colony size was large in a Purple Heron (Ardea purpurea
) colony .
Eastern marshy area of the lake which had served as a perfect retreat for Egretta garzetta (little egret), Ardea cinerea (grey heron), Ardea purpurea
(purple heron), Gallinula chloropus (common moorhen) and Porphyrio porphyrio (purple moorhen) has now been completely dried.