Hitbox of foals are too small

Confirmed.

I get the feeling this probably has to due with them having their baby code templated from normal baby mobs. That's a common problem - templating.

Is this still a concern in the current Minecraft version? If so, please update the affected versions in order to best aid Mojang ensuring bugs are still valid in the latest releases/pre-releases.

Still in 14w10c and 1.7.5

Confirmed for 14w17a

Confirmed for 14w25b

Also from horses which cause the eye level to be to low

confirmed for 14w32b

Confirmed for 1.8-pre2. This should not make in to 1.8.

Unfortunately it made it up to 1.8.2-pre1.

Resolved to MC-50367 in favor of the more general and detailed description provided.