Cook Reed Warbler was created in 1974.
Cook Reed Warbler was created in 1974.
Pitcairn Reed-warbler was created in 1900.
A parasitic relationship. The cucko lays its eggs in a warbler (E.g Reed warbler)
insect
A parasitic relationship. The Cuckoo lays its egg in a warblers (E.g. Reed warbler) nest and the cuckoo hatch-ling expels the eggs of the warbler. Therefore one species (the Cuckoo) benefits and the other one is at a disadvantage (the warbler). So the symbiotic relationship is parasitic.