Paragraph 2
The tagging was a joint
between the Wildlife Science and Conservation Center of Mongolia and the British Trust for Ornithology. The
Birding Beijing also helped. A
called the Mongolia Cuckoo Project was set up for bird
to see the birds'
. It reported that Onon arrived home after 26,000km, and 27 border crossings through 16
. It called the
: "Remarkable navigation and
." It added: "Onon has no time to waste as he needs to set up his
, defend it from competing males and mate with as many females as
."