The counting was done during the same time frame across the country to avoid double counting.
When Bhutan started keeping the record of the bird in 1987, only 370 cranes were recorded. Today, crane arrival in Bhutan has increased by over 48 percent according to RSPN's study on current population status and conservation initiative.
Between 1987-2014, Bhutan on an average received 415 cranes annually. Every year from 1987-2014, the number of cranes arriving in Bhutan increased by six on an average.
This time even Phobjikha where the bird's arrival has been on dramatic rise of 251 percent in 29 years received 457 cranes, the highest number since 1987. In 2014 Phobjikha received 422 cranes.
Crane arrival in Phobjikha has more than tripled since 2013.
"This year 57 cranes were found wintering below Aman Kora, a luxury resort in Phobjikha, where only five to six was seen before," Santa Lal Gajmer said.
Over the course of 29 years, Phobjikha now records 59 percent of the total annual crane arrivals from just 32 in 1987.
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