Lowering 22 % heart rate is a big number. It's a great ability to lower heart rate to such an extent.
Beside lowering the and hypometabolisim for their survival in winter. There are a lot of birds like geese, houbara bustards, cranes, teals, pintails, mallards, spoon bills, waders and pelicans, migrate from cold region in search of moderate temperature. About one million birds from siberia use the Indus Flyway, also known as the International Migratory Bird Route Number 4, covering a distance of about 4,500km. The migratory birds start their journey from siberiain september, october and return back to siberia in March,April
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Yeah, migrating further down south is always a great solution! It's actually very nice to live in a place where the birds migrate away during winter, and the few species that stay behind get lots of food from the people here in order to help them :)
Yeah, migrating bird from Siberia not only add colors but also provide ecological benefits as they prey on insects and weeds, thus contributing towards the betterment of agriculture.
absolutely right the remaining birds get maximum share of food so there is a win-win situtaion for migratory and remaining birds.
Exactly. Sadly, the mortality rate of some of the birds that stay behind in the winter is very high!