TY  - RPRT
TI  - Ecosystem consequences of bird declines.
AU  - Cağan H Sekercioğlu
AU  - Gretchen C Daily
AU  - Paul R Ehrlich
PY  - 2004
DO  - 10.1073/pnas.0408049101
UR  - https://pubmed.ncbi.nlm.nih.gov/15601765/
ID  - 15601765
ER  -