Land Bite
Bites enemies while on land. Its water attacks use separate animations and deal more damage.
- WhistleAttack This Target
Base damage1
- Thatch5.5
- Wood3
- Stone-
- Metal-
- Tek-
CreatureMisc

The Hesperornis is a small piscivorous creature with a passive taming method. It is notable for its unique dive attack, allowing it to swiftly catch fish from beneath the water's surface. This makes it ideal for survivors focused on efficient fishing and aquatic mobility.
It can be airlifted by Quetzal or Karkinos for fast deployment.
| Stat | Base | Wild +/lvl | Tamed +/lvl | Wild growth |
|---|---|---|---|---|
| Health | 95 | +19 | +4% | |
| Stamina | 200 | +20 | +2% | |
| Torpidity | 300 | +18 | +0% | |
| Oxygen | 150 | +15 | - | |
| Food | 900 | +90 | +2% | |
| Weight | 70 | +1.4 | +0.8% | |
| Melee damage | 100% | +5% | +10% | |
| Movement speed | 100% | +0% | +1% |
Kill a fish and drag the corpse up to the Hesperornis rather than putting it in your inventory. Unlike most fish tames, size makes no difference at all: only the species does. Sabertooth Salmon is worth four Coelacanth and well over one and a half Piranha, so it is the only one worth catching. It cannot reach full effectiveness however carefully you play it.
Hesperornis is tamed passively by killing a fish and dragging its body to the bird for consumption. The size of the fish matters, with larger fish being more effective; the Sabertooth Salmon is the most efficient option. Raw Mutton also works if better fish are unavailable.
The process takes about 12 Sabertooth Salmons. Use the calculator below for your settings.

Bites enemies while on land. Its water attacks use separate animations and deal more damage.
Base damage1
Default PC controls. Custom keybindings may differ.
Hesperornis has recorded spawns on 20 maps: The Island, The Center, Extinction, Astraeos, Ragnarok, Valguero and 14 more.
Compare recorded corpse resource yields by harvesting tool.
Each harvest event rolls resources independently. Actual yields vary.
Killing a Hesperornis yields Hide, Raw Meat, and Organic Polymer. The Hatchet yields the most Hide, while the Club and Dino (Polymer) are best for harvesting Organic Polymer.
BreaksThatchWoodStoneMetalTek
Base damage1
Base damage10
Base damage25
ResistsWeak to
HitboxesHead ×3
Base damage at level 1, 100% taming effectiveness, no imprint. Open damage calculator
Hesperornis has a +120% weakness to Instant HurtDinos, making it highly vulnerable to explosive damage sources. It is also weak to Melee DmgMetal RaidDino and Explosion Demolition, taking +55% and +50% more damage respectively. It resists Mining Drill Harvest completely, taking -100% damage from it.
The head has a damage multiplier of 3x, making headshots highly effective for faster knockouts. Focus attacks on the head when stunning the creature.
Can break Thatch and Wood. Build at least in Stone.
Base XP per kill: 0.5
Per kill
40 XP0.5 base × 15.9 level × 4 × 1.25× wild × 1× server
This page details the Hesperornis's stats, taming, breeding, harvest specs, and combat data. For precise planning, refer to the taming calculator, breeding calculator, and spawn map located on this page.