Note: These Challenge Questions coincide with the Spring 2006 Reports Challenge Question #2 From: by way of Journey North <susamel@brounstein.com> Date: Mon Mar 06 2006 - 09:01:03 EST Hummingbirds need positive limiting factors like acceptable temperatures and plenty of food, water, and shelter. Iselin Middle School/7th grade Stephen K Nick L Shawn Zooraze Received on Mon Mar 6 09:01:12 2006 Copyright 2006 Journey North. All Rights Reserved. Please send all questions, comments, and suggestions to jn-help@learner.org