When we were hunting there in July the locals were talking about that and how the fawns were born in the dry season. The lore is because if they weren't, mosquitoes would suck them dry. Your biology offers the more plausible reasoning.
It was wild to see bucks chasing does the last weekend of July. Locals said they've seen it earlier some years and later, by plus/minus two weeks from the last weekend of July.
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