The effects of humans on their lifestyle and/or habitat is quite dangerous in this case I should think. If they are monogamous by nature, then that means their mating habits are delicate in some way, and anything affecting that could mean a great decline in numbers...
There are also some birds who only have one mate in their whole lives, and if that mate dies, they don't mate again.
Whether they 'grieve' them (in terms of human understanding)for the rest of their lives or not is hard to say. But there must be a terrific bond that they somehow can't replace and don't wish to. Or perhaps there is a hormonal/chemical reaction to the death of a mate which renders them asexual?
There are also some birds who only have one mate in their whole lives, and if that mate dies, they don't mate again.
Whether they 'grieve' them (in terms of human understanding)for the rest of their lives or not is hard to say. But there must be a terrific bond that they somehow can't replace and don't wish to. Or perhaps there is a hormonal/chemical reaction to the death of a mate which renders them asexual?
