Ero and Yurei look none to sure at first, but the bold demeanor of their comrades stiffens their resolve. The plaintive calling tapers off, finally, and subsides for the moment.
*Someone (or more of you) give me a nature (DC 30) or a dungeoneering (DC 25) check, if you please, sirs?*
Dontrius looks a bit puzzled, strokes his sparse chin whiskers, and then says, "Unless I am very mistaken, what we hear is the mating call of the Purple-Frilled Wyvern, which, if you'll recall, is noteworthy among pseudo-dragonkind for its "breath" weapons -- legend holds that they breathe fire from one end and lightning from the other, possibly interchangeably. As one aged sage incorrectly put it, 'They sh** lightning and crap thunder.'* "
* Apologies to the memory of Burgess Meredith in "Rocky." I looked it up, and it's actually EAT lightning and crap thunder, but our old college buddy Jeff Davis used to say it the way I have it above.