What does white-chinned petrel mean?

Here's a list of possible definitions for the term white-chinned petrel:

white-chinned petrel, Procellaria aequinoctialis(noun)
large black petrel of southern seas having a white mark on the chin

white-chinned petrel
The white-chinned petrel is a large seabird species in the family Procellariidae. It is characterized by its largely dark plumage and distinctive white chin mark, although some individuals may lack this feature. The species mainly inhabits Southern Hemisphere oceans and is typically found in Antarctic waters. It feeds on squid, fish, and other marine prey. The white-chinned petrel nests in burrows on islands free from terrestrial predators, laying a single egg per breeding season. Despite its widespread distribution, it is considered vulnerable due to a decrease in population caused by longline fishing operations.

White-chinned Petrel
The White-chinned Petrel or Cape Hen, Procellaria aequinoctialis, is a large shearwater in the family Procellariidae. It ranges around the Southern Ocean as far north as southern Australia, Peru and Namibia, and breeds colonially on scattered islands.

Chaldean Numerology
The numerical value of white-chinned petrel in Chaldean Numerology is: 4
Pythagorean Numerology
The numerical value of white-chinned petrel in Pythagorean Numerology is: 9