Terrorbird Mythic
Terrorbird earns $110K/s at base. With Rainbow (×3.5) it earns $385K/s, before size.
It ranks #130 of 191 pets by base income and #13 of 23 Mythic pets.
Data checked: Oct 15, 2026 · Base weight: 6,000 kg · Egg: Extinction Egg
Income by mutation
| Mutation | Multiplier | Income | How it appears |
|---|---|---|---|
| None | ×1 | $110K/s | Normal hatch |
| Rainbow | ×3.5 | $385K/s | Hatch roll, 1% chance |
| Parasite | ×3 | $330K/s | Event or item only |
| Fractured | ×2.75 | $303K/s | Event or item only |
| Scrambled | ×2.75 | $303K/s | Event or item only |
| Golden | ×2.5 | $275K/s | Hatch roll, 4% chance |
| Spirit Bloom | ×2.5 | $275K/s | Event or item only |
| Bloom | ×1.25 | $138K/s | Event or item only |
| Silver | ×1.2 | $132K/s | Hatch roll, 6% chance |
Income by size
Terrorbird's base weight is 6,000 kg (community wiki). Heavier pets earn more, with diminishing returns past 125× the base weight; lighter-than-base pets earn less. The table uses the curve from the community wiki calculator.
| Weight | vs base | Size multiplier | No mutation | Rainbow | Golden | Silver |
|---|---|---|---|---|---|---|
| 3,000 kg | 0.5× | ×0.31 | $34.6K/s | $121K/s | $86.6K/s | $41.6K/s |
| 6,000 kg | 1× | ×1 | $110K/s | $385K/s | $275K/s | $132K/s |
| 12,000 kg | 2× | ×1.53 | $169K/s | $590K/s | $422K/s | $202K/s |
| 30,000 kg | 5× | ×2.7 | $297K/s | $1.04M/s | $742K/s | $356K/s |
| 60,000 kg | 10× | ×4.14 | $455K/s | $1.59M/s | $1.14M/s | $546K/s |
| 300,000 kg | 50× | ×11.16 | $1.23M/s | $4.3M/s | $3.07M/s | $1.47M/s |
| 750,000 kg | 125× | ×19.64 | $2.16M/s | $7.56M/s | $5.4M/s | $2.59M/s |
| 3,000,000 kg | 500× | ×34.19 | $3.76M/s | $13.2M/s | $9.4M/s | $4.51M/s |
Colour variants and mutations add together rather than multiply: Rainbow (×3.5) plus Parasite (×3) is ×5.5, not ×10.5.
Open Terrorbird in the calculator to try any mutation, size and number of pets.
Closest pets by base income
| Pet | Rarity | Base income | vs Terrorbird |
|---|---|---|---|
| Crustacia | Legendary | $130K/s | 1.18× |
| Ankylosaurus | Mythic | $120K/s | 1.09× |
| Eye Bat #021 | Legendary | $115K/s | 1.05× |
| Terrorbird | Mythic | $110K/s | – |
| Spideron | Legendary | $95K/s | 0.86× |
| Orca | Mythic | $80K/s | 0.73× |
| Spirit Manta | Mythic | $75K/s | 0.68× |
Source: Module:IncomeCalculator/Data (rev 2021, Sep 30, 2026), Mutations (rev 1822, Sep 20, 2026), Pets and Eggs (rev 2161, Oct 14, 2026), MediaWiki:Common.js (rev 1790, Sep 20, 2026) · Steal An Egg community wiki, CC BY-SA 3.0. Numbers restructured into tables.