FEATURE
the two pairs to be separated. With this I achieve breeding results almost every year, at least with one pair. The advantage is that I know which male the eggs are fertilized by. After the breeding season last year, I
have housed a trio C. n. nigra separately in an indoor enclosure of about 2.5 x 2 meters. It is a hen with two males. The birds tolerate each other well. The birds have been feeding each other, but didn’t breed, although the hen dropped eggs from the branch. This has everything to do with the long period they need to get used to a different environment I presume. My other birds stay in an aviary about 8
meters long and more than 2 meters wide. In here I can put dividers to create cages
more than 2 meters deep and about 1.5 meters wide. Here I can put pairs aside.
In Madagascar, the temperature never drops below freezing in their habitat and the birds (at least mine) hate cold.
Several hens have bred in these cages, unfortunately with unfertilized eggs until now. Perhaps I separated pairs too late in the year, while unfertilized eggs are due to males that don’t want to mate. Undoubtedly it has something to do with stress by environmental change. I also tried to let the group stay together,
but that gave troubles, because sometimes several hens wanted to use the same nest box. I did observe mating in the group. During mating, there were some males sitting next to the copulating pair, that imperturbable and unashamedly continued what it was doing. Unfortunately, it didn’t result in fertilized eggs.
BIRD SCENE 23
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