‘SELGE PILT’ ► How do immigrants know when and where to fly?
Each year millions of birds take thousands of miles to the beach, without having a map, compass or atmosphere. So they are able to find the right direction, choose the right moment and reach places that their fellows have already visited...
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2 reports · 2 sources
Postimees‘SELGE PILT’ ► How do immigrants know when and where to fly?Postimees‘SELGE PILT’ ► How do immigrants know when and where to fly?9 recorded states
Signal first indexedP1 · 68% quality · 1 source
Corroboration 1→2 sources · quality 68→72P1 · 72% quality · 2 sources
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Quality 96→99P1 · 99% quality · 2 sources