(ornithology) syrinx

to differ / to vary / to disagree

to ring, to sound, to roar, to chime, to honk

kind, sort, type; variety

birds, bird

pipe / a wind instrument

to take out, to get out / to put forth; to show or reveal / to submit, to turn in / to publish, to make public / to demonstrate, to show / to send something, like a letter / to begin, give rise to

a cry; crying

sound; echo; voice

a sound / when used with a "hear" verb, a rumor or fame / news, tidings / a reply, response