Fair Youngmaid,
there's another song which might be the one you are looking for. It is called 'Lough Erne shore', sung among others by Andy Irvine and Paul Brady on their record. It starts like this:

one Morning as I went a fowling Bright Phoebus adorned the plain
'Twas down by the shores of Lough Erne I met with this wonderful dame
Her voice was so sweet and so pleasing, these beautiful notes she did sing
The innocent fowl of her forest theri love unto her they did bring.

If this is the one you want I'll do the rest of the typing.

Wolfgang