Hi,

It depends on where in Ohio you are located.  According to Birds of the
Cleveland Region (4th ed) Ruby-throated Hummingbirds are rare in the first
part of April and by the end of April are common.

You can also look at the occurrence charts on eBird which allow you to sort
by state, county or specific location.

Haans

On Mon, Apr 20, 2015 at 12:28 PM, Kathy Shank <[log in to unmask]> wrote:

> Is there an "official" date or week of arrival for hummingbirds?  Just
> want to know when to put the feeders up...
>
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