There are no birds in the United Kingdom that begin with the letter x.
Birds beginning with J:JabiruJacamarJacanaJackdawJayJunco
Swallow
albatros
Oriole.
heron
The organ and the oboe both begin with o.
Bluejay
Albatross.
robin
albatross
Birds chirp when they sing. Birds begin with the letter b.