The spring sensation in February is far from pleasing Ontario birdwatchers, who note that global warming has resulted in several species of birds moving towards early migration.
The most at risk are those coming from the United States and feeding mainly on insects and fruits. Encouraged by the gentle but precarious weather, these birds are in particular at risk because they may find it difficult to find food before the arrival of spring or because they may be confronted with winter storms and Periods of extreme cold.
If there is food, often they can survive. If they depend on insects, they will perish
Other species will be influenced by light and will wait until the days lengthen before moving.
In an interview with Radio-Canada, the retired ornithologist Jacques Bouvier mentions that a rare case occurred last month. Three bicolour swallows, a species that usually does not arrive until April, have been seen in the southern part of the province and in Quebec.
“This is really something unusual! “He exclaimed.
He points out that this event may seem joyful for bird enthusiasts, however they may die because of isolation.
The American Robin is also a springing species of spring. The Hawkesbury-based retiree noted that she was seen in “record quantity” this winter in Montreal and southern Ontario, even surpassing the starling population, which has never been seen before.
Robins and red throats usually go further south to get their food and spend the winter there, but this year there was an exceptional fruit production,” adding that this is why these birds To survive a northern winter.
The same phenomenon is observed by the Ontario Parks naturalist David Bree.
One never sees black-winged blackbirds before March. This year, they were seen at the end of January
Although ornithologists fear the worst for these more fragile species, they can do nothing to protect them and counteract the phenomenon.
According to the ornithologist Jacques Bouvier, only long-term studies will be able to identify the concrete impacts of this early migration on fauna and flora.
So solutions may emerge from this research, but it will take time as global warming is dazzling.