studies quoting home range sizes from 150 to 1500 acres can be found 

 in the literature. One study in the Northern Rockies (McClelland 

 1979:297) proposed a minimum of approximately 500 acres (200 

 hectares) . 



The harvest methods proposed would maintain most if not all of the 

 large snags, and would probably increase the amount of large down 

 woody debris. However, the stands could be too open for suitable 

 Filiated habitat. 



Under Alternative A, no state harvesting would take place. In this 

 situation, the state land alone would probably meet minimum Filiated 

 acreage requirements, and the state and private land together would 

 probably satisfy even the largest estimates of home range size for a 

 pair of Filiated Woodpeckers. 



The Action Alternatives all include harvesting in Unit 1. If 

 harvested as described (using methods that meet Department 

 objectives for course filter biodiversity and fine filter objectives 

 for Flammulated Owls) then harvest Unit 1 could be less suitable for 

 Filiated Woodpeckers. Suitable snags and down woody material would 

 remain, but the post harvest stand could be more open than Filiated 

 Woodpeckers prefer. 



This reduction in potential Filiated habitat would mean that the 

 state land on its own, would probably no longer meet minimum home 

 range requirements. However when the adjacent private land is 

 considered, along with the probability of future logging on the 

 private land, it would appear that ample connected habitat would 

 remain in these two drainages to support a nesting pair of Filiated 

 Woodpeckers . 



40 



