Table 3.

Description of the various categories used for tail scoring.

Scorea	Descriptiona		Photographs examples
Damage score
1	Intact	No damage. The skin of the tail has no marks or injuries
2	Swollen tail or bite marks	The tail is swollen with a red coloring or has small injuries from bites which are visible as spots/dots on the tail
3	Open wound	The tail has one or more open wounds with puncture(s) of the skin and removal of tissue
4	Swollen and open wound	The tail is swollen and has one or more open wounds with puncture(s) of the skin and removal of tissue
Freshness score
1	No blood	No blood visible on the tail
2	Dry black blood, scar	Dried blood, which is dark brown or black, is visible on the tail
3	Dark red/brown	Somewhat dried blood is visible on the tail. It looks red to brown and feels somewhat sticky, or wet. The tail may, or may not, have a wound crust
4	Red fresh blood	The tail shows fresh red blood. It feels wet due to bleeding, or exudate. The tail may or may not have a wound crust

^aThis scoring system was developed within the FareWellDock project, and adapted from a previous experiment (14).