Early Bird Departure: Heatwave Sends Migratory Birds Packing from Bhitarkanika
In a striking environmental shift, a recent surge in temperatures has prompted a large-scale early departure of migratory birds from Bhitarkanika National Park in Kendrapada, cutting short their typical four-month winter sojourn, according to forest officials. This unusual phenomenon underscores the growing impact of climate variability on wildlife patterns.
Unprecedented Temperature Rise Disrupts Avian Calendar
Forest authorities have noted that thousands of birds, which arrived in November to escape the harsh winters of regions beyond the Himalayas, are now fleeing Bhitarkanika's water bodies due to unseasonable warmth. Manas Kumar Das, assistant conservator of forests (ACF) for Bhitarkanika, highlighted the severity of the situation: "Temperatures in Bhitarkanika are now 3°C to 4°C higher than two decades ago. With the mercury touching 31°C already, many migratory birds have already left. However, several waterbirds such as ducks are still there as they prefer shallow wetlands."
Early Exodus Marks a Departure from Norms
Typically, these avian visitors commence their return journey by mid-March, but the unusual temperature spike in February has accelerated their departure this year. Das explained, "Normally, birds begin their return journey by mid-March. But the unusual rise in Feb temperatures has prompted an early departure this year." The birds had traveled from distant locales including:
- Siberia
- Afghanistan
- Iran and Iraq
- Central Europe
- The Himalayan region
Bird Count and Species Impact
This winter, Bhitarkanika, India's second-largest mangrove forest after the Sundarbans, hosted an impressive 1,52,762 migratory birds representing 106 species. Among those already departing are species such as:
- Shoveller
- Pintail and Gadwall
- Wigeon and Common Pochard
- Garganey and Tufted Duck
- Common Teal and Coot
Officials added that some waders, including curlew, pipit, and white-eye, remain in the park, but their numbers are dwindling.
Tourism and Observational Insights
The arrival of these birds had previously added vibrant colors to the park, attracting tourists and birdwatchers alike. Tapan Samal, a local tour operator, remarked on the change: "Many visitors are now surprised to see the birds leave earlier than usual." This early exit not only affects ecological balance but also impacts the local tourism economy, which thrives on birdwatching activities during the winter months.
The situation in Bhitarkanika serves as a poignant reminder of how climate-induced temperature rises are altering natural habitats and migratory patterns, urging closer monitoring and conservation efforts to protect these delicate ecosystems.
