The phrase "at stopover" is not correct in standard written English.
It is typically used to refer to a layover or break in a journey, often in the context of travel.
Example: "We had a long layover at stopover before continuing our flight to Paris."
Alternatives: "during a layover" or "at a layover".
Habitat selection at stopover sites was highly influenced by availability of food.
Other studies have investigated timing and energetics of migration at stopover sites (e.g., McNeil and Cadieux 1972), trends in fall pop-ulation size on the Atlantic coast (Howe et al. 1989), and response of the species to wetlands management (e.g., Rundle and Fredrickson 1981, Weber and Haig 1996).
After broadcasts of three episodes of the series, "The Air Hostess War," the Thai Airways International union protested the story about an affair between a married pilot and a tall, slim flight attendant, featuring sex at stopover cities and love triangles that lead to fighting in the aisles.
Other migration hazards include pollution, storms, wildfires, and habitat destruction along migration routes, denying migrants food at stopover points.
The higher concentrations of migrating birds at stopover sites make them prone to parasites and pathogens, which require a heightened immune response.
For some species of waders, migration success depends on the availability of certain key food resources at stopover points along the migration route.
Viruses may indeed regularly infect ducks within wintering areas, but also at stopovers between wintering sites (Figure 3).
When a simulated bird left the Camargue being in a healthy state, it moved to its destination mesh (breeding area or other wintering site) without contamination at stopovers.
Migration rates (including time at stopovers) for the fall and the spring did not differ significantly (17 and 14 km/h, respectively; p = 0.23).
Because excretion duration and inactivation rates in water were fixed for HP H5N1, we were able to investigate a hypothetical contamination risk at stopovers.
Migrating barn swallows may combine foraging with covering migration distance, and they may gather substantial fuel stores at stopovers prior to crossing wide geographical barriers (Rubolini et al. 2002; Turner 2006).
