Carnegie Institution of Washington Publication No. 211
Carnegie Institution of Washington Publication No. 211
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In no case, however, was a noddy seen to feed a young sooty. Apparently the peculiar behavior of the young noddy is required to call out from the adult the instinctive act of regurgitation and feeding.
EXPEBDISNT 13.
Two 2-day old noddy chicks were placed in a nest which already contained a 3-day chick.
One of the younger ducks was white, the other blade. The oMer chick was black. The adult noddy returned and covered the three chicks immediatdy. The nest was observed regulariy for 15 days, when... the work was interrupted by heavy storms. The three young chicks were fed by the single pair of adults and throve as well as chicks which were alone in the other nests. On the eteventh day one of the chicks disappeared. The others were stm in the nest ^en observations were interrupted.
During the first days after the hatching of the egg the noddies do not dis- tinguish their own young from those of other birds and react to them only because of their presence in the nest. On the fourteenth day, or earlier, the young noddies leave the nest and lie hidden in the bushes during the day.
What to read after Carnegie Institution of Washington Publication No. 211?
You can find similar books in the "Read Also" column, or choose other free books by Carnegie Institution of Washington to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
In no case, however, was a noddy seen to feed a young sooty. Apparently the peculiar behavior of the young noddy is required to call out from the adult the instinctive act of regurgitation and feeding.
EXPEBDISNT 13.
Two 2-day old noddy chicks were placed in a nest which already contained a 3-day chick.
One of the younger ducks was white, the other blade. The oMer chick was black. The adult noddy returned and covered the three chicks immediatdy. The nest was observed regulariy for 15 days, when... the work was interrupted by heavy storms. The three young chicks were fed by the single pair of adults and throve as well as chicks which were alone in the other nests. On the eteventh day one of the chicks disappeared. The others were stm in the nest ^en observations were interrupted.
During the first days after the hatching of the egg the noddies do not dis- tinguish their own young from those of other birds and react to them only because of their presence in the nest. On the fourteenth day, or earlier, the young noddies leave the nest and lie hidden in the bushes during the day.
What to read after Carnegie Institution of Washington Publication No. 211?
You can find similar books in the "Read Also" column, or choose other free books by Carnegie Institution of Washington to read onlineMoreLess
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