itar ized ▁Zone ▁( DM Z ). ▁South ▁Korea ▁made ▁efforts ▁to ▁restore ▁the ▁species ▁after ▁former ▁Chinese ▁President ▁Hu ▁J int ao ▁delivered ▁a ▁pair ▁of ▁the ▁birds ▁as ▁a ▁present ▁during ▁a ▁South ▁Korea - Ch ina ▁sum mit ▁in ▁ 2 0 0 8 ; ▁and ▁president ▁X i ▁Jin ping ▁presented ▁one ▁pair ▁more ▁in ▁ 2 0 1 3 . ▁The ▁rest oration ▁center ▁in ▁Ch ang ny e ong ▁has ▁b red ▁more ▁than ▁ 3 6 0 ▁cr ested ▁i b ises ▁so ▁far . ▁The ▁South ▁Korean ▁government ▁has ▁released ▁do z ens ▁of ▁cr ested ▁i b ises ▁into ▁the ▁wild ▁to ▁promote ▁its ▁efforts ▁to ▁preserve ▁bi ological ▁divers ity . ▁ ▁See ▁also ▁ ▁List ▁of ▁Special ▁Places ▁of ▁Sc en ic ▁Beaut y , ▁Special ▁Historic ▁S ites ▁and ▁Special ▁Natural ▁Mon uments ▁– ▁the ▁cr ested ▁i bis ▁is ▁listed ▁ ▁References ▁ ▁External ▁links ▁▁▁▁ ▁Japanese ▁cr ested ▁i bis ▁at ▁www . b iod ic . go . jp ▁ ▁Sib agu : ▁Th res ki orn ith idae ▁of ▁China ▁ ▁Sib agu : ▁Th res ki orn ith idae ▁of ▁Japan ▁▁▁▁▁▁▁▁▁▁▁ ▁Category : Th res ki orn ith idae ▁Category : B ird s ▁of ▁China ▁Category : B ird s ▁of ▁Japan ▁Category : B ird s ▁of ▁Taiwan ▁Category : B ird s ▁of ▁Russia ▁Category : B ird s ▁of ▁Korea ▁Category : Special ▁Natural ▁Mon uments ▁Category : B ird s