Tagged Questions
4
votes
1answer
65 views
Birds from the Family Columbidae Feed Young “Crop Milk”
Birds from the family Columbidae (e.g., doves and pigeons) produce a fatty, milk-like substance in their crop. The secretion is often referred to as "crop milk." They feed crop milk to their young ...
7
votes
1answer
442 views
Why is the Kakapo more attracted to humans than its own kind?
The Kakapo can be seen in this video by BBC. It is said that the species is strongly sexually attracted to humans. Why could this be the case?
9
votes
2answers
137 views
Did we first have swimming birds or flying birds?
Looking at the swimming birds building nests just across my garden, I suddenly wondered how evolution came to swimming birds and whether flying birds started swimming or whether swimming bird like ...
