This is the species that is used as THE cultivated walnut tree. It has pinnately compound leaves with about 7 alternate leaflets, larger towards the tip or terminal end.
Humans have enjoyed these nuts for so long that in many languages the word for nut is a word for THIS nut. Its original range is long forgotten, but it is grown across Eurasia, with China being the largest exporter for the worldwide market.
This black-white-and-grey bird points its slender bill downwards - or tilts it comically upwards - as it spirals face-first down tree trunks and round ...
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