- bird egg variety
- White Eggs
- White eggs with dots or spots
- Green bird eggs
- blue eggs
- Brown bird eggs
- Red, gray and yellow eggs
- frequently asked Questions

Every now and then you come across bird nests, eggs or egg shells while hiking or gardening. Which bird laid the eggs? We have compiled characteristics of bird eggs of native species.
In a nutshell
- Bird nests with eggs rarely require human assistance
- depending on the bird species, the birds leave the clutch for a short time
- Egg-laying sometimes takes several days
- Adjusted coloring of eggs to hatch locations
bird egg variety
Bird eggs can be small or large, light or dark, solid or mottled, rough or smooth, dull or shiny. We have compiled the eggs of native birds separated by color with the most important characteristics for you.
Notice: The Federal Nature Conservation Act prohibits the taking away of bird eggs from nature.
White Eggs
Great spotted woodpecker (Dendrocopos major)

- Habitat: forest areas, gardens, settlements
- Breeding season: April to August, one annual brood
- Incubation period: 11 to 12 days
- Place of storage: breeding cavities in rotten tree trunks
- Clutch size: 4 to 7 eggs
- Egg size: 20 x 29 millimeters
Kingfisher (Alcedo atthis)

- Habitat: rivers, lakes
- Breeding season: March to September, two to four annual broods
- Incubation period: 17 to 21 days
- Place of deposit: on the steep banks of water in nest tubes
- Clutch size: 6 to 7 eggs
- Egg size: 22 x 16 millimeters
Green Woodpecker (Picus viridis)

- Habitat: Forest edges, gardens
- Breeding season: April to August, one annual brood
- Incubation period: 14 to 15 days
- Storage location: tree cavities, nest boxes
- Clutch size: 5 to 8 eggs
- Egg size: 28 x 33 millimeters
- Characteristic: white, smooth and shiny
Goshawk (Accipiter gentilis)

- Habitat: coniferous forest
- Breeding season: March to July, one annual brood
- Incubation period: 35 to 40 days
- Storage location: in treetops
- Clutch size: 2 to 5 eggs
- Egg size: 55 x 42 millimeters
Great crested grebe (Podiceps cristatus)

- Habitat: Coastal areas, Bodden waters
- Breeding season: March to October, one or two annual broods
- Incubation period: 25 to 29 days
- Place of deposit: in the water, in the riparian vegetation
- Clutch size: 2 to 6 eggs
- Egg size: 53 x 35 millimeters
Mandarin duck (Aix galericulata)

- Habitat: Bodies of water with dense riparian vegetation and trees
- Breeding season: April to May, one annual brood
- Incubation period: 28 to 30 days
- Storage location: tree cavities
- Clutch size: 9 to 12 eggs
- Egg size: 49 x 39 millimeters
Common Swift (Apus apus)

- Habitat: cliffs, settlements
- Breeding season: May to September, one annual brood
- Incubation period: 20 to 21 days
- Storage location: in rock caves, on buildings
- Clutch size: 2 to 3 eggs
- Egg size: 25 x 16 millimeters
House Martin (Delichon urbicum)

- Habitat: Settlements
- Breeding season: May to September, one to two annual broods
- Incubation period: 17 to 20 days
- Storage location: on the outside walls of buildings
- Clutch size: 3 to 5 eggs
- Egg size: 19 x 13 millimeters
City Pigeon (Columba livia domestica)

- Habitat: Settlements
- Breeding season: March to August, two to four annual broods
- Incubation period: 16 to 18 days
- Storage location: in buildings
- Clutch size: 2 to 3 eggs
- Egg size: 26 x 30 millimeters
- Feature: white, glossy
White Stork (Ciconia ciconia)

- Habitat: Fields and meadows, wetlands
- Breeding season: March to September
- Incubation period: 32 to 34 days
- Storage location: on roofs, towers and trees
- Clutch size: 3 to 5 eggs
- Egg size: 77 x 52 millimeters
White eggs with dots or spots
Blue tit (Cyanistes caeruleus)

- Habitat: forests, gardens, settlements
- Breeding season: March to August, one to two annual broods
- Incubation period: 13 to 15 days
- Storage location: in tree cavities
- Clutch size: 6 to 14 eggs
- Egg size: 16 x 12 millimeters
- Characteristic: white with reddish-brown spots
Skylark (Alauda arvensis)

- Habitat: meadows, fields, sand dunes
- Breeding season: April to August, two annual broods
- Incubation period: 11 to 14 days
- Storage location: on the ground, in troughs
- Clutch size: 3 to 5 eggs
- Egg size: 24 x 17 millimeters
- Characteristic: white with brown spots
Nuthatch (Sitta europaea)

- Habitat: forests, gardens, settlements
- Breeding season: March to June, one annual brood
- Incubation period: 15 to 18 days
- Storage location: in tree cavities
- Clutch size: 5 to 9 eggs
- Egg size: 19 x 15 millimeters
- Characteristic: white with brown spots
Great Tit (Parus major)

- Habitat: forests, gardens, settlements
- Breeding season: March to August, one to two annual broods
- Incubation period: 13 to 15 days
- Storage location: in tree cavities, nest boxes
- Clutch size: 6 to 12 eggs
- Egg size: 18 x 13 millimeters
- Characteristic: white with reddish-brown spots
Buzzard (Buteo buteo)

- Habitat: fields, forests, farmland
- Breeding season: March to August, one annual brood
- Incubation period: 33 to 35 days
- Storage location: in trees
- Clutch size: 2 to 3 eggs
- Egg size: 60 x 45 millimeters
- Characteristic: white with brown spots
Red Kite (Milvus milvus)

- Habitat: fields, meadows, forest edges
- Breeding season: April to August, one annual brood
- Incubation period: 29 to 30 days
- Storage location: in trees, on ledges
- Clutch size: 2 to 3 eggs
- Egg size: 57 x 45 millimeters
- Characteristic: white with brown spots
Long-tailed tit (Aegithalos caudatus)

- Habitat: Forest edges, parks, gardens
- Breeding season: March to June, one annual brood
- Incubation period: 13 to 14 days
- Place of storage: in trees, hedges and bushes
- Clutch size: 8 to 12 eggs
- Egg size: 14 x 11 millimeters
- Characteristic: white with red dots
Wren (Troglodytes troglodytes)

- Habitat: Forest edges with lots of undergrowth
- Breeding season: April to August, two annual broods
- Incubation period: 15 to 16 days
- Place of deposit: on the ground in dense forest vegetation
- Clutch size: 5 to 7 eggs
- Egg size: 17 x 12 millimeters
- Characteristic: white with brown spots
Green bird eggs
Magpie (pica pica)

- Habitat: forests, gardens, settlements
- Breeding season: March to August, one annual brood
- Incubation period: 17 to 18 days
- Storage location: in hedges and deciduous trees Clutch size: 5 to 7 eggs
- Egg size: 33 x 23 millimeters
- Characteristic: green with dark brown spots
Redstart (Phoenicurus phoenicurus)

- Habitat: gardens, parks, forests, settlements
- Breeding season: April to August, one annual brood
- Incubation period: 12 to 14 days
- Storage location: on buildings, in nest boxes
- Clutch size: 5 to 7 eggs
- Egg size: 19 x 14 millimeters
- Characteristic: greenish blue
Gray Heron (Ardea cinerea)

- Habitat: lakes, rivers, wetlands
- Breeding season: February to August, one annual brood
- Incubation period: 25 to 28 days
- Storage location: in treetops
- Clutch size: 3 to 5 eggs
- Egg size: 60 x 43 millimeters
- Feature: green-blue, matt surface
Mute swan (Cygnus olor)

- Habitat: ponds, pools, rivers, lakes
- Breeding season: April to October, one annual brood
- Incubation period: 33 to 38 days
- Place of deposit: on the water in the riparian vegetation
- Clutch size: 5 to 8 eggs
- Egg size: 98 x 62 centimeters
- Characteristic: greenish gray
Herring Gull (Larus argentatus)

- Habitat: Coastal areas, dunes, fields, wetlands
- Breeding season: April to August, one annual brood
- Incubation period: 27 to 30 days
- Storage location: on the ground, on ledges, in buildings
- Clutch size: 2 to 3 eggs
- Egg size: 71 x 49 millimeters
- Feature: olive green
Pintail (Anas acuta)

- Habitat: Coastal waters and lakes Breeding season: April to August, one brood per year
- Incubation period: 22 to 25 days
- Place of deposit: on the ground, in dense riparian vegetation
- Clutch size: 7 to 10 eggs
- Egg size: 54 x 37 millimeters
- Characteristic: greenish yellow
Starling (Sturnus vulgaris)

- Habitat: fields, gardens, forests
- Breeding season: March to July, one to two annual broods
- Incubation period: 12 to 13 days
- Place of deposit: in tree cavities, in nest boxes
- Clutch size: 4 to 7 eggs
- Egg size: 30 x 21 millimeters
- Characteristic: greenish blue
Mallard (Anas platyrhynchos)

- Habitat: along flowing water
- Breeding season: late February to September, one annual brood
- Incubation period: 28 to 29 days
- Place of deposit: in a hollow in the ground, a little away from the shore
- Clutch size: 10 to 12 eggs
- Egg size: 57x 41 centimeters
- Characteristic: greenish gray
blue eggs
Blackbird (Turdus merula)

- Habitat: forests, gardens, settlements
- Breeding season: February to August, two to four annual broods
- Incubation period: 13 to 14 days
- Storage location: near the ground in hedges and bushes
- Clutch size: 4 to 5 eggs
- Egg size: 29 x 21 millimeters
- Characteristic: blue with brown pattern, slightly shiny
Crossbill (Loxia curvirostra)

- Habitat: Coniferous and mixed forests
- Breeding season: January to March, one to two annual broods
- Incubation period: 14 to 16 days
- Storage location: in conifers
- Clutch size: 3 to 5 eggs
- Egg size: 22 x 16 millimeters
- Characteristic: bluish with brown spots
Bullfinch (Pyrrhula pyrrhula)

- Habitat: Forests, parks, gardens
- Breeding season: April to July, two annual broods
- Incubation period: 13 to 14 days
- Place of storage: in trees and shrubs
- Clutch size: 4 to 6 eggs
- Egg size: 18 x 13 millimeters
- Characteristic: light blue with black dots
Greenfinch (Carduelis chloris)

- Habitat: forest, fields, gardens
- Breeding season: March to August, one to two annual broods
- Incubation period: 12 to 14 days
- Storage location: in hedges, bushes, trees
- Clutch size: 3 to 7 eggs
- Egg size: 20 x 14 millimeters
- Characteristic: light blue with brown spots
House Sparrow (Passer domesticus)

- Habitat: gardens, parks, settlements
- Breeding season: March to September, two to four annual broods
- Incubation period: 12 to 14 days
- Storage location: on buildings, in nest boxes, in trees
- Clutch size: 4 to 6 eggs
- Egg size: 22 x 16 millimeters
- Characteristic: light blue with brown spots
Raven (Corvus corax)

- Habitat: forest, mountains
- Breeding season: February to August, one annual brood
- Incubation period: 20 to 21 days
- Storage location: in trees, on rocky slopes
- Clutch size: 3 to 6 eggs
- Egg size: 49 x 33 millimeters
- Characteristic: blue or green with dark spots
Cormorant (Phalacrocorax carbo)

- Habitat: on large lakes and rivers
- Breeding season: March to August, one annual brood
- Incubation period: 28 to 30 days
- Storage location: on trees, on ledges
- Clutch size: 3 to 4 eggs
- Egg size: 59 to 41 millimeters
- Feature: light blue
Goldfinch (Carduelis carduelis)

- Habitat: forests, farmland
- Breeding season: April to September, two annual broods
- Incubation period: 12 to 14 days
- Storage location: in branch forks
- Clutch size: 4 to 6 eggs
- Egg size: 17 x 13 millimeters
- Characteristic: bluish with reddish-brown spots
Brown bird eggs
Lapwing (Vanellus vanellus)

- Habitat: Wet meadows, pastures
- Breeding season: March to August, one annual brood
- Incubation period: 26 to 27 days
- Storage location: on the ground in meadows and fields
- Clutch size: 3 to 4 eggs
- Egg size: 46 x 32 millimeters
- Characteristics: light brown with black spots
Crane (Grus Grus)

- Habitat: bogs, swamps, fields, bodies of water
- Breeding season: March to September, one annual brood
- Incubation period: 28 to 30 days
- Storage location: on the ground
- Clutch size: 1 to 2 eggs
- Egg size: 98 x 62 millimeters
- Characteristic: olive brown or reddish brown with brown spots
Black-headed gull (Chroicocephalus ridibundus)
- Habitat: Coastal areas, meadows, pastures, wetlands
- Breeding season: April to July, one annual brood
- Incubation period: 22 to 24 days
- Storage location: on the ground near water
- Clutch size: 2 to 3 eggs
- Egg size: 52 x 36 millimeters
- Characteristic: brownish or greenish with dark spots
Notice: Nest boxes are a great way to support native birds. Pay attention to the right height. In order to protect the bird eggs from nest robbers, we recommend placing nest boxes in places where there are no branches.
Red, gray and yellow eggs
Chaffinch (Fringilla coelebs)

- Habitat: forests, gardens, settlements
- Breeding season: April to August, two annual broods
- Incubation period: 12 to 13 days
- Storage location: in branch forks
- Clutch size: 4 to 6 eggs
- Egg size: 19 x 15 millimeters
- Characteristic: reddish with reddish-brown spots
Hawfinch (Coccothraustes coccothraustes)

- Habitat: forests, gardens
- Breeding season: April to August, one annual brood
- Incubation period: 11 to 12 days
- Storage location: in bushes and hedges
- Clutch size: 4 to 6 eggs
- Egg size: 24 x 18 millimeters
- Characteristic: gray with dark brown spots
Robin (Erithacus rubecula)

- Habitat: forest, gardens, settlements
- Breeding season: April to August, two annual broods
- Incubation period: 13 to 14 days
- Place of storage: in the undergrowth, in the grass, in burrows
- Clutch size: 4 to 6 eggs
- Egg size: 20 x 15 millimeters
- Characteristic: yellowish with brown dots
Notice: Note that to protect bird eggs, hedge trimming is prohibited from March 1st to September 30th. Only a grooming cut is allowed during this time.
Special case: Cuckoo (Cuculus canorus)

- Habitat: light forest areas, near water
- Breeding season: April to September
- Incubation period: 12 to 13 days
- Place of storage: in nests of other birds
- Clutch size: 10 to 25 eggs
- Egg size: 21 x 17 millimeters
- Characteristic: color matched to the eggs of the host animals
frequently asked Questions
How do you know if an egg is fertilized?Experts can tell whether an egg is fertilized or not by candling it with a strong light source. Unfertilized eggs are clear. Fertilized eggs, on the other hand, are opaque. This is caused by blood vessels that form shortly after fertilization to supply the embryo with nutrients.
Why are bird eggs often mottled or patterned?Color shades, patterns or speckles serve to camouflage and protect against predators. As a result, the eggs of many bird species can hardly be distinguished from their surroundings.
Do bird eggs always have an oval shape?Most eggs are oval in shape. This prevents it from rolling away quickly. Owls usually lay round eggs. They breed in a tree hole where there is no danger of rolling away.