Rarity level

Species are classified into 7 different rarity levels. From commonest to rarest:

• Very common
• Common
• Escaped
• Unusual
• Rare
• Very rare
• Never observed

When you enter a species, it is automatically classified according to the criteria defined by administrators in each local site. However, an administrator can change manually the rarity level of specific observations due to temporal or regional circumstances. For example, if you entered a species classified as very rare but administrators know at the point of the observation there is a scaped individual, the rarity level of your observation may be manually changed to Escaped. Note when this is the case and you modify the data, the assigned category will be automatically reverted to the original and administrators will need to change it manually once more.