Eggs: the quiet engine

An egg on a bird is worth 1 point. Flat, unconditional, no setup, no combo. It is the least interesting sentence in the rulebook and it decides most two-player games.

Eggs pay three times

1. Points. Every egg sitting on a bird card at the end is 1 VP.
2. Currency. Playing a bird costs an egg fee by column: 0 for column 1, 1 for columns 2 and 3, 2 for columns 4 and 5. That’s 6 eggs to fill one habitat and 18 to fill the whole board, on top of every food cost. No eggs, no wide tableau.
3. Goals. This is the big one.

The base game has 8 double-sided goal tiles, so 16 possible goal faces. Twelve of the sixteen require eggs. Eight count eggs directly, four count birds that must be carrying at least one egg. Only four faces ignore eggs entirely: three habitat bird counts and total birds.

Before any tile is revealed, an egg engine is favored to contest three of your four round goals. That is the same action scoring points, buying birds, and winning goals, three times per cube.

Two footnotes: star nests are wild for every nest-type goal, which makes star-nest birds quietly excellent. And “sets of eggs” scores the smallest of your three habitat egg counts, not the sum, which makes it the hardest face in the pool. More in Round goals.

The grassland is the only row that scores by itself

Gaining food produces zero points. Drawing cards produces zero points. Laying eggs produces points on the spot. A full grassland is 4 eggs from one cube, 5 if you pay a food for the conversion, repeatable every time you place a cube there. Nothing else in the base game turns a bare action into points at that rate.

Round 4 belongs to the grassland

Five turns left, and everything you’re holding is about to become worthless. Food in supply scores 0. Cards in hand score 0. Eggs, tucked cards, and cached food score 1 each.

Here is what a developed grassland pays per turn in round 4:

Grassland birds	Points per cube
2	3
3	4 (3 eggs plus 1 food converted)
4	4, plus every brown power firing right to left

Five turns at 4 points is 20 points, before any bird powers. Deviate from laying only for something specific: a bird worth more than that yield, a goal you can flip, a bonus threshold you can cross, or a tuck engine that beats it.

Two conversions to burn into your hands. Always take the food-to-egg conversion from an interior grassland slot: 0 points becomes 1. Never take the wetland egg-to-card conversion in round 4: 1 point becomes 0, a straight minus one.

Capacity is the hidden number

Every bird has a printed egg limit, and the rulebook is blunt: any excess beyond your limit is lost. This is where egg strategies actually break.

Average capacity across the 170 core birds is 2.85, range 0 to 6. Only 17 birds hold 5 or 6 eggs, about 10% of the deck. Only four hold six. So a twelve-bird tableau at average capacity holds roughly 34 eggs in total, and you’ve been spending eggs on column fees since round 1. Running a deep grassland for all five turns of round 4 would need 20 to 25 open spaces at the start of the round. In practice you can sustain two or three big runs, not five.

Capacity has to lead the engine. Play your big-nest birds before you max the grassland row, not after. Laying 4 eggs into 2 open spaces wastes half a turn.

The 0-point birds that are worth 5

This is the mispricing nobody at a casual table respects. Ruddy Duck prints 0 VP, holds 5 eggs, and costs 1 food. Mourning Dove prints 0 VP, holds 5 eggs, costs 1 food, and goes in any habitat. Twelve core birds print 0 or 1 VP while holding 4 or 5 eggs. Every one of those slots is a point.

The designers built this in deliberately: no 5-point bird in the core set has a 5-egg nest. VP and capacity were traded against each other on purpose, which is exactly why you evaluate a bird as printed VP plus egg capacity, one number. See Judging any bird.

Egg-eating powers are capacity relief

Powers that spend an egg look like they’re costing you a point. In round 4 with a full board they do the opposite: they free a slot you were about to overflow, and pay you twice for the same egg. The ravens turn 1 egg into 2 wild food. Killdeer and Franklin’s Gull turn 1 egg into 2 cards. Put them in the row where the eggs are already landing and the loop closes on itself.

Why this is the lever, honestly

In the largest published set of base-game boards, bird points were the biggest scoring category and the weakest predictor of winning: the eventual winner lost the bird-points race in 41% of games. Eggs and goals are the categories winners almost never lose. That data comes from three-player games among strong players, so read it as a direction rather than a target. The direction points at the grassland.

Eggs win games. Nobody respects them.