Both eyases are 2 weeks old today. They spent the best part of the day alone together. Their seconf down is complete and that's why they have their own thermo regulation. They can keep their bodytemperature constant without protection of the parents.
They are fed frequently about 4-5 times a day for longer periods. When they where born their weight was about 45 grams. After 1 week that has doubled to 90-100 grams. When they are 4 weeks their weight will be about that of their father. So a lot of food is needed to acomplish this growrate.
Eyases go through 2 molts in 46 days! Imagine how much energy and nutrients that takes. Feathers are made mainly out of proteine. So a lot of that is needed. First the second down has to grow and next the complete brown plumage. The second down consists of 2 types: preplumlae that stick to the plumulae and plumulae. Around the 10th days the first primary feathershaft start appearing. They grow about 2-3 mm a day. You can notice that by the bleu-ish edges of the wings.
No comments:
Post a Comment