Looks like the work of a ground hog (wood chuck). He's trying to excavate a den. It is hard to catch them in the act of digging as they are very secretive and warry. They have an acute sense of hearing and are very stubborn. Once it has made a sucessful den, it will be very hard to evict. You can fill a burrow entrance with excavation dirt and tamp it shut, only to find it open again the next day. If you do not want a den in a particular location, it is best to stop the digging at first start. I have tried several animal deterrants and none worked. What worked the best was old, used motor oil, the stinkier, the better. Plug new diggings with the excavation dirt and then pour old motor oil on the dirt plug. and a little around the hole. Don't over do it as we do not wish to mess up the environment. The oil does not evaporate and will remain active for a year or more. This has been the only effective deterrant I have found. By the way, I do allow ground hogs to den on my property so long as the den offers no danger or problems to me or small children that may visit my property. Beware that ground hogs and gardens do not mix. One of their favorite foods is sweet pea vines. We had one animal decimate an entire row of peas in one night. The pea vines had started to climb the support netting. The wood chuck went along the row and nipped out a 2 to 3 inch section out of each vine, not touching any of the remaining vine - total destruction of the crop!

Thank you. Interesting, I just read this, "All terrestrial leeches (Haemadipsidae) are blood feeders and feed mostly on warm-blooded vertebrates" http://keys.lucidcentral.org/keys/v3/TFI/start%20key/key/Annelida%20key/Media/HTML/Arhynchobdellida.html

Blonde elk are unusual but do exist. They have ruffs around the neck. Albino moose are getting more common in the northern states. Adolescent moose have disporportionately long front legs until they grow into them.

That's exactly what they are! I think they're really cool looking, don't you? There are not too many things that allow you to look into their 'innards'. For the most part, these sawfly larvae do cosmetic injury and the tree will recover from the assault and leaf out normally next season. Treating them is not recommended unless it happens a few years in a row, which can weaken the tree. Lots of other critters will move in to feast on these pests, another reason to avoid spraying.