09/04/2023
"... What Does It Mean if a Bear Has a Collar or Ear Tags?
A common misconception is that a tagged bear in Connecticut is a problem bear, and a bear with two ear tags was caught on two different occasions because it was causing problems. Actually, every bear receives two ear tags (one in each ear) the first time it is handled by DEEP, regardless of why it was tagged. Most tagged bears have not been caught as problem bears, but rather as part of a project to research the state’s bear population.
Ear tag color indicates the year the bear was tagged. For example, a bear with green tags was handled in 2019, and one with orange tags was handled in 2018, regardless of age, gender, or reason for tagging.
Each colored tag has a 3-digit number code. The last digit indicates the year, while the first 2 numbers indicate the sequence in which it was caught. For example, a bear with ear tag “03-6” would be the third bear handled in 2016, and a bear with ear tag “20-4” would be the twentieth bear handled in 2014.
Ear tags help biologists track bear movements and dispersal. Bears tagged in Connecticut have traveled as far as Vermont. Bears tagged in New York, Massachusetts, and even Pennsylvania have shown up in Connecticut. Ear tags can also help identify individual bears that have a repeated problem behavior.
A bear with a collar will also have ear tags. The collar helps biologists locate a bear and track its movements. Data collected from collars provide biologists with important information about the growth, movements, and health of Connecticut’s bear population. ..."
More info:
https://portal.ct.gov/DEEP/Wildlife/Bears/Frequently-Asked-Questions-About-Black-Bears