Influence of factors on migrant habitat selection.

We used mixed-effects models with the individual bird as the random component to control for the non-independence of habitat use for the same individual between time periods (06∶30 to 18∶30 h) and days (1 to 3). Models include fixed effect for the influence of the release habitat type (Pine, Mixed, or Hardwood) and day of stopover (1 to 3) on habitat use at the end of each two-hour period. We also expected the release habitat to decline with increasing time of day (Release habitat type x Hour) and included the landscape and year (2007 or 2008).