In this area there are at least 10 known colonies.
The only known natural colony of the now rare Miami blue butterfly was discovered in the park in 1999.
They tell me the last known colony was here, on North Key Largo.
We know this because in this area were the first known colonies of the Spanish conquistadors.
The island is the northern-most known colony of auklets.
The Polynesian government has been actively fighting it since 2005, partially through the mapping of known colonies.
For each of the two known colonies, the population has varied between 25 and 2000 over recent years, indicating the precariousness of the species.
The current total of known colonies that have become silent is between ninety-seven and ninety-eight billion.
The site contains the only known colony of yellow bird's nest in the two counties.
To the people of the time (1820s) the known colonies were in the Americas so the whole area became known as "America".