As regular CFZ-watchers will know, for some time Corinna has been doing a column for Animals & Men and a regular segment on On The Track... particularly about out-of-place birds and rare vagrants. There seem to be more and more bird stories from all over the world hitting the news these days so, to make room for them all - and to give them all equal and worthy coverage - she has set up this new blog to cover all things feathery and Fortean.

Friday, 12 September 2014

'Green wave' explains migratory bird routes

Date:
September 10, 2014

Source:
Cornell University

Summary:
Bird migrations follow areas of new plant growth -- a so-called 'green wave' of new leaves and numerous insects -- research shows. In fall, particularly in the western US, they stick to higher elevations and head directly southward, making fewer detours along the way for food.


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