Note to reporter. That is so ‘bulldozer-like’ it IS a bulldozer.
I thought he was talking about a Skidder till I saw the pix...
Skidder http://www.google.com/imgres?imgurl=http://www.publiquip.com/photo/Timberjack-550-84.jpg&imgrefurl=http://www.publiquip.com/zarc/Timberjack-550-Skidder-966575740.htm&h=480&w=640&sz=128&tbnid=iZt18rsI3—ZjM:&tbnh=92&tbnw=122&zoom=1&usg=__gkFl9ub1VGW0-fNBNaqyCnWZifQ=&docid=B9hErF1sS3NUaM&sa=X&ei=33SNUbnDN6r-iwK644CIDA&ved=0CDQQ9QEwAA&dur=1998
Tracked skidder. They come in different sizes and shapes.
http://www.google.com/imgres?imgurl=http://www.cat.com/cda/files/1154757/7/track-skidder.jpg&imgrefurl=http://www.cat.com/equipment/skidders/track-skidders&h=240&w=320&sz=31&tbnid=zf-OQ7F2gy9w5M:&tbnh=112&tbnw=149&prev=/search%3Fq%3DTracked%2Bskidder%26tbm%3Disch%26tbo%3Du&zoom=1&q=Tracked+skidder&usg=__Hkx—_odCpWvCEMT7A7G_JdHSZU=&docid=pjRTjKvMEL5PyM&sa=X&ei=IHiNUfCjKK_MigLh5oGQCw&ved=0CDYQ9QEwAA&dur=2830
There are wheel skidders and track skidders.