Oops, it doesn't look like 'chocolate bird day' is a national day..

Other days

tulip

Tulip Day
bounce

Bounce Day
nail polish

Nail Polish Day
unicorn

Unicorn Day
pick me

Pick Me Day
me

Me Day
nae nae

Nae Nae Day
boy friend

Boy Friend Day
cat girl

Cat Girl Day
comfy

Comfy Day