Sentences with phrase «migrating birds arrive»

For example, when migrating birds arrive either before or after food sources are present, it can negatively affect their growth and survival.

Until the migrating birds arrive back in Chicago, there's still time to create your own.

Not exact matches

Much as migrating birds or spawning insects rely on the timing of spring so that there is enough available food when they arrive in a given region, so, too, the salmon rely on the timing of phytoplankton blooms, followed by the zooplankton bloom that then feeds baby salmon.

Not only did they come up with a fully automatic method to teach users how to identify visually similar species, but they also designed a system that can pinpoint which birds are arriving, departing, or migrating.

2018 brought the coldest and snowiest April on record for much of North America, spelling trouble for migrating birds who arrived in the north, expecting to bulk up on the spring emergence of bugs — and instead found 2 feet of snow.