When ornithologist Bob Gosford reported multiple accounts that both black kites (Milvus migrans) and brown falcons (Falco berigora) were spreading wildfires in northern Australia – which Indigenous Aboriginal people had claimed previously – many other experts were skeptical.
It was not contentious that the birds were spreading fire, but that there was intent behind their action, and that it was nothing more than accidental behaviour.
Gosford then spent the following year collecting additional eyewitness accounts of raptors carrying burning sticks and embers to ignite grassland.
In his latest paper, published in the Journal of Ethnobiology, Gosford added the whistling kite (Haliastur sphenurus) to the group of fire-starting birds.
It is thought that the birds take advantage of lightning strikes that spark wildfires in northern Australia. The raptors have been observed picking up burning twigs from these blazes and then flying to unburnt patches of grassland and forest to drop them, spreading the fire.
The birds will then attend the advancing edge of the fire and catch small mammals, reptiles, amphibians, and insects fleeing the flames.
[Source:
IFLS]