New protocol on swallow nests explains new rules for exporters stockbot 0 354 2023.03.14 10:14 https://vietnamnews.vn/economy/1496744/new-protocol-on-swallow-nests-e… + 2 https://vietnamnews.vn/rss/economy.rss + 3 Việt Nam had 23,665 recognised bird farms by late 2022, most of which are in Kiên Giang and Bình Định provinces.