If anyone says that the eggs are too sensitive, lemme tellyou this: you can hatch the egg at the blue obelisk on mobile with a rather rinse-and-repeat method once you have fur armor:

-Use three campfires during the day. Make sure the egg is leaning against them to provide adequate shielding against the harsh winter environment.

-Put the egg away at nighttime, as during this time it will be too cold for the campfires to have any effect. (This might be skippable with the use of a Dimetrodon, provided you have leveled it sufficiently for Melee damage, planning to do research on this).

-While the night is upon you, you have 3 options: A. Gather wood and thatch in equal amounts, using your Quetzal to defend you if things go sour, as well as to transport the materials. B. Build a bed at the Blue Obelisk, suicide and then use it to skip the night. And C. Transport the egg somewhere warmer for the night to avoid having to wait. (Option B is probably the most viable)

-Repeat when its daytime again. Follow these steps until your egg hatches. (Keep the egg in a storage closet or inventory such as that of your Quetzal at night to prevent it from despawning while you gather for wood)

Hopefully your little Quetzal will hatch using this method. Might be different on other platforms, but its this way on mobile, plus having to wait only 3 hours and a half whereas Ive heard on other platforms hatching a Quetzal takes 18, so you’re really better off here on mobile.

Hope it helps.