Quiz 52: Trees for birders

The quiz below shows four photographs of the leafy crowns of trees, as you might see them while looking for birds through binoculars or telescopes. Differences in leaf “posture”, arrangement, and color are just as obvious as differences in leaf shape, and all of these species are readily distinguishable at a glance, even in silhouette. …

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Altruistic trees!

It turns out that trees not only communicate through fungal networks in their roots, they also pass nutrients around from tree to tree, even between species! The fungi (many species) grow in contact with the roots of the tree, enjoying the steady source of carbohydrates that the tree has produced, and in exchange giving the …

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Trees in their spring colors

I’ve been neglecting trees in my posts recently, but here in Massachusetts spring is the best time of year for tree-watching, and today the sun was out offering some good photo opportunities.

Identifying trees by color

Spring is always an exciting time for birdwatchers, as migrants pass through and summer residents return, all in their flashy breeding plumage. This time of year is equally interesting for tree-watching, and it is the best time of year for identifying trees from a distance by their color.