TY - JOUR T1 - Stable isotope analysis provides new information on winter habitat use of declining avian migrants that is relevant to their conservation JO - Plos One PY - 2012/04/05 AU - Evans KL AU - Newton J AU - Mallord JW AU - Markman S ED - DO - DOI: 10.1371/journal.pone.0034542 VL - 7 IS - 4 Y2 - 2025/11/03 ER -