Fresno, Calif. (Fox26) — ‘Tis the season to mail packages right? Workers at a Fresno post office got quite the surprise when a man tried to ship something that isn’t exactly ideal for “priority mail” – puppies!

United States Postal Service says you can’t mail puppies kittens or certain warm blooded animals. It’s a felony to do so.

The United States Postal Service says a man walked in with boxes marked ‘birds’ and when a worker asked the man what was in the boxes and he said birds.

Workers say there were some birds inside the boxes, but there were also two puppies inside a different box with no food or water.

Read more: Fresno man tries to mail puppies to North Carolina | KBAK