1997
Embryo van Buizerd Buteo buteo met twee koppen
Publication
Publication
De Takkeling , Volume 5 - Issue 1 p. 70- 71
Among 20 nests of Common Buzzards, found in 1996 in SE-Drenthe, two clutches of 4 eggs were found. In one of these, produced by a pair in adult plumage, two eggs did not hatch. The other two eggs hatched and fledged. One of the unhatched eggs contained a full-grown embryo with two heads (see Photo). Both heads were fully developed, including an egg-tooth on the bills. The egg-shell did not show signs of attempts to open it from the inside.
| Additional Metadata | |
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| De Takkeling | |
| CC BY 3.0 NL ("Naamsvermelding") | |
| Organisation | Werkgroep Roofvogels Nederland |
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Arjan Dekker. (1997). Embryo van Buizerd Buteo buteo met twee koppen. De Takkeling, 5(1), 70–71. |
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