Question
Due to recent storms in our area we had to have our river birch tree trimmed back. It stands higher than our two story house. There were approximately 4-5 bigger branches from the top and a main trunk comming from the ground.It has been leaking water for around two weeks now.It there something that we need to do?The bottom "cut" trunk was yellow and "foamy" this morning when I left for work.thanks, Tammy k

Answer
This is normal for river birch. They produce a large amount of sap during the spring and if there is a wound the sap will leak out. As the weather warms up and the sap begins to flow, the trees will appear to bleed from the pruning cuts. While not a concern as far as the overall health of the tree, it can be unsightly and the good news is will stop when the wound heals. When a birch tree is bleeding about all you can do is keep it well watered so the moisture loss is minimized. Commercially available pruning paints will not  slow the flow of sap from a bleeding wound and will slow down the healing process.  
Sorry, You may have to put up with the leaking until the wound heals. If the weather turns dry I would water the tree since it is losing water through the wound.