5' of birdsnest inside vent, where does it go?

[sate888]

Hey I'm new n don't kno if this has happened before, but I have pulled 5' of birds nest..... 3 nests, 4 eggs, from the forward stbd vent hole in my '73 23' tsunami project ....... I'm feeling the hull bottom now but can still feel straw, does this vent hole go thru to the bilge? I want to hose the remainder out but not if there's open foam down there.....Thx drew