It would be ridiculous to try and out-do what Sean K. Reynolds has already brilliantly done for D&D 3.5 in The New Argonauts so at the start of every one of these posts I’m going to 1) thank him for making that supplement (thank you Sean!) and 2) tell you to go download it (it’s free–give it 5 stars because damn). This blog series is not intended to be a reproduction of that product, only a conversion update. Go get it.

Post 1: What You Need To Play

Master Page for D&D 5E Ancient Greece/Monster List

Stymphalian Bird

Small beast, unaligned
Armor Class 13 (natural armor)
Hit Points 27 (6d6+6)
Speed 30 ft.

Saving Throws Dex +4
Skills Perception +4, Stealth +4
Senses passive Perception 14
Languages Common
Challenge 1/2 (100 XP)

ACTIONS
Multiattack. The stymphalian bird attacks twice–one bite attack and one claw attack, or two blade feather attacks.
Bite. Melee Weapon Attack: +2 to hit, reach 5 ft., one target. Hit: 3 (1d6) piercing damage.
Claw. Melee Weapon Attack: +2 to hit, reach 5 ft., one target. Hit: 2 (1d4) slashing damage.
Blade Feathers. Ranged Weapon Attack: +4 to hit, range 20/40 ft., one target. Hit: 4 (1d4+2) slashing damage.

These strange ibis-like birds have sharp metal feathers, which they hurl and anyone who accosts them. The feathers are so sharp that dead birds have been known to kill men simply by falling on them out of trees or the sky. The birds prefer to use their feathers as ranged weapons, only swooping in to claw and peck at foes near death from the feathers.

An Intelligence (History) check reveals the following information: 10—A flock of metal-feathered birds lived on Lake Stymphalis in Arcadia, hurling their sharp feathers like arrows from a bow. 15—Heracles drove the birds away from the lake by making loud noises, and shot them out of the sky as they took flight.