Fuzzy
Rollerblading along the road
Avenue Veteran
Celebirdy of the Month
Mayor of the Avenue
Avenue Spotlight Award
In the last few years, Kobe's (Blue-headed Pionus) moulted primaries are looking like this (some years are worse than others):
The barbs(?) seem to be quite weak. I can hear they aren't quite right when he's flying. The feathers grow in ok but by the time they moult a year later, there are pieces missing. There is a length of weakness that you can see in the picture above - where the black looks mottled, those are holes. Interestingly I found a crow's feather that showed the same sort of damage:
Is it a nutrient deficiency? Is this feather destructive behaviour? I haven't seen him overly picking at his feathers. The rest of him is in beautiful condition.
The barbs(?) seem to be quite weak. I can hear they aren't quite right when he's flying. The feathers grow in ok but by the time they moult a year later, there are pieces missing. There is a length of weakness that you can see in the picture above - where the black looks mottled, those are holes. Interestingly I found a crow's feather that showed the same sort of damage:
Is it a nutrient deficiency? Is this feather destructive behaviour? I haven't seen him overly picking at his feathers. The rest of him is in beautiful condition.