That calls for a bit of a reply.That's all right; the peanut gallery's not doing so well, either, so introductions are in order.
The answer to the OP's question was such that a straight reply would seem like a message from the Ministry of stating the bleeding obvious, the Lark in the morning is such a wellknown tune that in my mind anybody with even the slightest interest in Irish music would have heard it.
So I searched for an image with the terms 'lark in the morning', hoping to find a reference that would give the answer in a roundabout way, without leaving the OP hanging, as it were. Ideally something that would show the full title in the link when hovering over the image. There wasn't really a suitable candidate, unfortunately, this image though refereed to a video of the tune by some band or other. So I used that, the original plan having failed, while knowing the reference would be too obtuse to come across and showing a none bog standard type of lark to boot. But then again, I didn't want to lead the OP to the Skylark, a different tune altogether.
Last night just before sunset I was on the bog at the the top of 'our' road. Some years for some reason the bogcotton is extremely abundant and this is one of those years. I wanted to get a few pics of the stuff backlit by the setting sun. And I wanted an excuse to get out for a little while, that too. It was lovely and quiet, a beautiful evening, cuckoos calling and several larks singing in the air. Skylarks.
That's my story anyway.