Black Swans were once thought to be sedentary, but the species is now known to be highly nomadic. There is no set migratory pattern, but rather opportunistic responses to either rainfall or drought.
When rain does fall in the arid central regions, Black Swans will migrate to these areas to nest and raise their young. However, should dry conditions return before the young have been raised, the adult birds will abandon the nests and their eggs or cygnets and return to wetter areas.
Black Swans are unable to fly for about a month following mating. (This time may vary). During this time they will usually settle on large, open waters for safety.
The species has a large range. No threat of extinction, or significant decline in population has been identified with this numerous and widespread bird.
I would like to thank and attribute to Wikipedia all the above information.
Black Swan’s may be adjusting migratory patterns. Caveat emptor is advised.
George Gutowski writes from a caveat emptor perspective.
- How to create a social media “black swan” event (creativeagencysecrets.com)