Sandesh Kadur / Great-tailed Grackle (Quiscalus mexicanus) roosting on electric lines along Highway 77, Brownsville, Texas, USA. March

David Welling / Brown-headed Cowbird (Molothrus ater) male perched on Cattail, Anahuac National Wildlife Refuge, Texas, USA, June

Patricio Robles Gil / Great tailed grackle (Quiscalus mexicanus) in water, Yucatan, Mexico

Rolf Nussbaumer / Great tailed grackle, male {Quiscalus mexicanus} Texas, USA

Loic Poidevin / Brown headed cowbird (Molothrus ater) Pointe Pelee, Ontario, Canada, May

George Sanker / Silhouette of Common grackle (Quiscalus quiscala) at water, USA

Rolf Nussbaumer / Bronzed cowbird (Molothrus aeneus) two males perched together on branch, Dinero, Lake Corpus Christi, South Texas, USA.

Rolf Nussbaumer / Bronzed cowbird (Molothrus aeneus) pair sitting on branch, Dinero, Lake Corpus Christi, South Texas, USA.

Gerrit Vyn / Rusty blackbird (Euphagus carolinus) male displaying, Seward Peninsula, Alaska, USA May

B&S Draker / Great-tailed Grackle (Quiscalus mexicanus), flock at sunset. Welder Wildlife Refuge, Sinton, Texas, USA, February.

Rolf Nussbaumer / Bronzed Cowbird (Molothrus aeneus). Laredo, Webb County, Texas, USA, April.

David Welling / Bronzed Cowbird (Molothrus aeneus) male visiting a garden pond to drink and bathe. Rio Grande Valley, Texas, USA, April.