Butterfly blunder Just to correct the identification of the lovely butterfly on your Spring issue cover and on page 8: it's a Milbert's Tortoiseshell, not a Monarch. The one shown on page 20 is a Monarch. The tortoiseshell is mainly found west of the plains and at higher elevations. We get it here in the South Okanagan Valley in early spring and then in the mountains in the summer. There are relatively few Monarchs in Western North America. The Eastern population was always much larger, but the Western one seems to be declining. - Eva Durance Penticton, British Columbia A number of our readers caught this error, which was an editorial slip-up, and not the mistake of our nature columnist, Rebecca Grambo. Greenhouse gardening Thank you for such an awesome magazine! Acreage Life has the best photos and articles. It really helps me appreciate the country lifestyle. I am very interested in garden greenhouses. I would really like to build my own, maybe 8 x 12 feet. I'd like something glass and permanent for year-round use. Do you have any ideas and information? - Alanna Payette Kamloops, British Columbia Check here for a web-exclusive story on greenhouses, in connection with our February, 2007 issue. Write to us at: The Mailbox, Acreage Life Box 2500, 2310 Millar Avenue, Saskatoon, SK S7K 2C4 Or e-mail us: acreagelife.editors@producer.com