2013 January 1, Paul Bartel, Ashli Moore, “Avian Migration: The Ultimate Red-Eye Flight”, inAmerican Scientist[1], volume101, number 1, archived fromthe original on5 March 2016, pages47–48:
Many of these classic methods are still used, with some modern improvements. For example, with the aid of special microphones and automated sound detection software, ornithologists recently reported […] that pine siskins (Spinus pinus)undergo an irregular, nomadic type of nocturnal migration.
2021 November 19, Madeline Holcombe, “Is your mom warmer with her grandkids than with you? A new study says blame biology”, inCNN[2]:
The womenunderwent functional magnetic resonance imaging (fMRI), which measures changes in blood flow that happen with brain activity, while being shown images of their grandchild, another child they didn’t know, an adult they didn’t know, and the same-sex parent of their grandchild.