Journaling Question: Growing Needs "What are two different reasons why the number of feeding trips increases sharply when the babies are about a week old?" When baby wrens are tiny, they simply can't fit as much food in their tummies as they can when they've grown bigger. That explains why they get more food the second week than they did the first week. But why the sudden sharp increase? At that point the babies have feathered out enough, and have enough control over their body temperatures, that their mother no longer needs to incubate them to keep them warm during the day. So now she can spend a lot more time searching for food for the babies. And based on those hungry wren mouths we saw in one of the wren videos, we bet the babies are glad! Watch wren videos Copyright 2004 Journey North. All Rights Reserved. Please send all questions, comments, and suggestions to our feedback form