Some others (but by no means all) keeping BPs have also noticed that their BP shows a color preference when it comes to their prey. It's easy to speculate that
this could be the result of the snake previously getting bit & now the snake has a negative association with other prey of the same color, but it doesn't happen with
all BPs....it's just a guess.
FYI, it's best to feed in evening/night* hours, when BPs normally hunt. And it's best to feed them IN their normal enclosure, not in another container, as handling
before feeding can stress them into not feeding, & handling them before or after feeding is more likely to get YOU bit. *btw, dim the room lights too & keep still.
Also: BPs are ambush-hunters...most feed best when they feel safe in their hide & just peeking out: that's what they're doing...waiting for a clueless rodent to hop
on by to grab. When a snake is cruising it's cage, many feel way too exposed (they're at risk from predators when THEY stop to eat!) so they commonly refuse.