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Birds in Winter: A Book Review, Written in Winter

10,000 Birds

This visual marking of who’s in charge (and who’s not) helps reduce aggressive actions within the flock during winter, so the sparrows’ energy can be used more productively for finding food and watching out for predators.

Research 165
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Combined Beats List – June 2016

10,000 Birds

Despite recording 370 species during the month, the list total has advanced by just 45. Just to confuse things a little, only 14 new species were recorded since June 1 st. Nashville Warbler – Oreothlypis ruficapilla. As at June 30 th , it stands at 1796. Imagine that, Mike! Bosque de Tlalpan. 29 Mar 2016. 29 Mar 2016.

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