bawling
blatant
boanergean
boisterous
brawling
brazen-mouthed
clamorous
clamoursome
crying
full-throated
loud-voiced
multivocal
noisy
obstreperous
openmouthed
screaming
shouting
stentorian
strident
trumpet-tongued
trumpet-voiced
vociferant
vociferating
vociferous
yammering
yapping
yelling
yelping