This female Violet-green Swallow is feeding one of her young chicks at the entrance to the nest. The chicks are now able to climb up to the entrance of the nest and the adults no longer have to enter the nesting cavity in the tree.  Two days later the chicks had left the nest.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/32541690@N02">Alan Vernon</a>
CC BY 2.0
<a href="//commons.wikimedia.org/wiki/Flickr" class="mw-redirect" title="Flickr">Flickr</a>: <a rel="nofollow" class="external text" href="https://www.flickr.com/photos/32541690@N02/3672262992">Female Violet green Swallow (Tachycineta thalassina) feeding chick -  #1</a>