Cultural evolution in song of Geothlypis philadelphia (Mourning Warbler)

By Jay Pitocchelli, Biology Department, Saint Anselm College Related paper: Temporal stability in songs across the breeding range of Geothlypis philadelphia (Mourning Warbler) may be due to learning fidelity and transmission biases by Jay Pitocchelli, Adam Albina, Alex R. Bentley, David Guerra, and Mason Youngblood, Ornithology.   We used a long-term database of songs recorded over …

City birds tend to be for the rich — and there is a historical element to this as well

By Eric Wood Related paper: Historical racial redlining and contemporary patterns of income inequality negatively affect birds, their habitat, and people in Los Angeles, California by Eric M. Wood, Sevan Esaian, Christian Benitez, Philip J. Ethington, Travis Longcore, Lars Y. Pomara. Ornithological Applications While driving around Greater Los Angeles (L.A.), one cannot help but notice …

Fighting against the rising tides: Climate change outpaces tidal marsh sparrows’ ability to adapt

Conservation practitioners need information that can help predict species’ ability to cope with rapid environmental changes in order to make management decisions. We wanted to better understand the adaptive capacity of two tidal marsh nesting sparrow species, the Saltmarsh (Ammospiza caudacutus) and Nelson’s (Ammospiza nelsoni) sparrows.

Reproductive data collected over 20 years help guide recovery of a reintroduced population of critically endangered California Condors

By Victoria Bakker and Myra Finkelstein Related paper: Lead, trash, DDE, and young age of breeders linked to lower fertility in first two decades of reintroduction for critically endangered California Condors in California by Victoria J. Bakker, Myra E. Finkelstein, Daniel F. Doak, Rachel Wolstenholme, Alacia Welch, Joe Burnett, Arianna Punzalan, Joseph Brandt, Steve Kirkland, …

The Complexity of Haemosporidian Infection Dynamics in Song Sparrows

By Lydia Balogh Related paper: Haemosporidian infection prevalence varies temporally and spatially and Leucocytozoon infections are male biased in Song Sparrows: La prévalence des hémosporidioses varie dans le temps et l’espace et les infections à Leucocytozoon sont biaisées en faveur des mâles chez Melospiza melodia by Leanne A. Grieves, Lydia Balogh, Tosha R. Kelly, Elizabeth …

North American shorebirds are declining faster than we ever imagined

By Stephen Brown, Vice President of Science, Manomet Linked Paper: Accelerating declines of North America’s shorebirds signal the need for urgent conservation action by Paul A. Smith, Adam C. Smith, Brad Andres, Charles M. Francis, Brian Harrington, Christian Friis, R.I. Guy Morrison, Julie Paquet, Bradford Winn, and Stephen Brown, Ornithological Applications. Nearly all shorebird species …