Toybox Values

Birb in Grow a Garden: Prismatic pet, egg odds and ability

Birb is a Prismatic pet in Grow a Garden, and hatching it takes about 1,000 eggs on average: 0.1% from the Bird Egg, the best of 2 eggs. Its ability Birbegg: Cooldown 300 s at every level. The wiki marks it as not obtainable now. Added Jan 17, 2026.
Data checked: Oct 15, 2026

Facts

RarityPrismatic
Obtainable now (wiki)No, flagged limited
AddedJan 17, 2026 (Hungry Birds Event)
Hunger49,999
Hatches fromBird Egg (0.1%), Premium Bird Egg (0.1%)
Other sources (wiki)Rainbow Sack
Abilities with numbersBirbegg

Where Birb hatches and the odds

EggEgg priceHatch timeHatch chanceEggs on average (100 / chance)
Bird Egg – 20 minutes 0.1% 1,000
Premium Bird Egg – 30 seconds 0.1% 1,000

Eggs on average is 100 divided by the hatch chance. It is an average over many eggs, not a promise that the pet comes within that many.

The wiki disagrees with itself on this figure. The table shows the value most pages give, or the egg's own page when they tie. Premium Bird Egg: 0.08% on the wiki's Eggs list.

Birb abilities

AbilityStat Level 1Level 100 Change per levelLimit
Birbegg Cooldown300 s300 s –min 300 s
Amount150150 –max 150
Chance30%30% –max 30%
Multiplier2.517.35 +0.15–

Level 1 and level 100 are calculated here with the wiki's own ability formula: base value plus the change per level, held inside the limit. Stat names follow the wiki's data; the effect itself is described on the wiki page linked below.

Related pets

All Grow a Garden pets · Egg odds and prices · Grow a Garden

FAQ

How do I get Birb in Grow a Garden?

Birb hatches from these eggs: Bird Egg (0.1%), Premium Bird Egg (0.1%). The wiki also names Rainbow Sack as other sources. The wiki marks it as not obtainable now. The wiki flags it as limited.

What are the ability numbers of Birb?

Birb has the ability Birbegg: Cooldown 300 s at every level; Amount 150 at every level; Chance 30% at every level; Multiplier 2.5 at level 1 and 17.35 at level 100.

How many eggs does it take to hatch Birb?

Birb: Bird Egg 0.1%, about 1,000 eggs; Premium Bird Egg 0.1%, about 1,000 eggs on average (100 divided by the chance). It is an average, not a guarantee.

Source: Grow a Garden Wiki Birb (rev 152050), Module:Passive/Data (rev 153487), and the pages of the eggs above. CC BY-SA 3.0. Numbers were restructured and some were calculated here; the wording is ours and no wiki images are used. Original Grow a Garden, not Grow a Garden 2. Checked Oct 15, 2026.