The U.S. dollar fell marginally against the Vietnamese dong Tuesday morning. Vietcombank sold the greenback 0.008% lower at VND26,378. On the black market the dollar gained 0.11% to VND26,950.

Vietcombank sold the dollar at VND24,370, down 0.08% from Sunday. The State Bank of Vietnam has reduced its reference rate by 0.08% to VND23,932. The greenback went up 0.16% to VND24,740 on the black ...

Answering such questions could help to establish population trends in rarely encountered birds and over time, it could indicate if a bird's numbers are falling and if greater conservation action is ...