How would you say?
What would an 'agrostologist' be in Hebrew? Also what would you call a 'bird watcher' in Hebrew as well? Any responses on the topic would be greatly appreciated.

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"tzappar צפר" is ornithologist, but i'm not sure if it can also mean a casual birdwatcher. As for "Agrostology" I don't know what that even means lol.

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As Aysar said, "bird watcher" is "צַפָּר"(tzappar).

I also had no idea what "agrostologist" means, so I googled it and found out that Agrostology is "the branch of botany dealing with grasses."
In Hebrew there is no equivalent word, so maybe you can use the word Botanist(בּוֹטָנַאִי - botanaiee).