The bulk update request #9649 is pending approval.

create alias hatching (331) -> hatching_(disambiguation) (0)
create implication hatching_from_egg (0) -> egg (19691)
create implication hatching_from_egg (0) -> birth (2809)
create implication live_birth (1373) -> birth (2809)
create implication anal_birth (189) -> live_birth (1373)
create implication cock_birth (80) -> live_birth (1373)
create implication nipple_birth (153) -> live_birth (1373)
create implication oral_birth (21) -> live_birth (1373)
create implication vaginal_birth (1229) -> live_birth (1373)
remove implication anal_birth (189) -> birth (2809)
remove implication cock_birth (80) -> birth (2809)
remove implication nipple_birth (153) -> birth (2809)
remove implication oral_birth (21) -> birth (2809)
remove implication vaginal_birth (1229) -> birth (2809)
remove implication rebirth (95) -> birth (2809)

Reason: Hatching seems to be commonly confused with hatching_(art), so I feel like a disambiguation is likely needed at this point. hatching -egg is almost entirely mistags, and that search already makes up roughly a third of the total population of the tag.

While we're at it, hatching requires the presence of an egg, so that implication would make sense. Hatching also depicts the process of a creature being born, so the implication to birth seems reasonable. live_birth already exists for the other kind of birth. If we're going to do that, though, then the existing implications to birth should be moved to live_birth. For example, vaginal_birth refers exclusively to live birth; the egg counterpart is vaginal_oviposition.

I left out rebirth because I'm not sure that should actually count in all cases. If the character is being transformed or age-regressed or something before being reborn, then sure - but if the character merely enters the other character's womb and emerges the same way they went in, that doesn't quite seem like it fits the "birth" theme. Then again, you could argue that posts like that shouldn't qualify as rebirth, either. The current wiki definition and usage of the tag treats it as the inverse or conclusion of unbirthing, not requiring anything more than that.