It’s been over a week since we’ve seen a significant number of spring migrants passing through our local park. For this year at least, female Redstarts and Black-throated Blue Warblers trailed their male counterparts by a few days. It was exciting to see Yellow-billed Cuckoo along the edge of the reservoir again this year.

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When the Blackpoll Warblers move through Griggs Reservoir Park it’s usually a sign that spring migration is near it’s end. “Blackpoll Warblers breed in black spruce and tamarack forests (further north) in Canada’s boreal forests. In western Canada, they also use thickets of spruce, alder, and willow. In northern New England they breed in wet areas with evergreen trees. During migration they stop over in scrubby thickets and mature evergreen and deciduous forests. On their wintering grounds east of the Andes in South America, they occur in forest edges and second-growth forests below 10,000 feet. Blackpoll Warblers are numerous throughout their range, but their numbers have declined severely in recent decades. Much of their far-northern breeding range lies outside of the area covered by the North American Breeding Bird Survey, making it hard to estimate population trends precisely. Nevertheless, the NABBS records suggest an extreme decline of nearly 5% per year from 1966–2015, resulting in a cumulative decline of 92% during that time period.” Ref: Cornell All About Birds.

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The female Black-throated Blue Warblers were also part of the late migration mix. “Black-throated Blue Warblers breed in large tracts of mature deciduous and mixed evergreen-deciduous woodlands with a thick understory of shrubs including hobblebush, mountain laurel, and rhododendron. In the Appalachians, they tend to occur at elevations of 2,600–5,250 feet, but they occur at lower elevations in hilly terrain farther north. After breeding, individuals often move to shrubby young forests (i.e., early successional habitats) with their offspring. During migration they occur in all types of woodlands, parks, and gardens. On the wintering grounds they inhabit dense tropical forests, woodlands, shade-coffee plantations, and second-growth areas with trees. Black-throated Blue Warblers are common and their populations increased by 163% between 1970 and 2014, according to Partners in Flight“. Ref: Cornell, All About Birds.

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We’ve been hearing Red-eyed Vireos more in recent days. The White-eyed and Warbling Vireos have  apparently moved on.

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Eastern Wood Pewees are still seen, but many may head further north as they don’t seem as common in the park in the summer.

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Occasionally we still see a Yellow Warbler.

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The mallard babies are growing up and amazingly, considering they are usually victims of various forms of predation, their ranks haven’t thinned much.

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Breeding in the park, Eastern Kingbirds haven’t been nearly as rambunctious the last few days. Perhaps they are busy with nest building.

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An immature Red-tailed Hawk was seen near it’s nest at the north end of Griggs Reservoir during a recent paddle.

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The highlight during that same paddle was spotting a Yellow-billed Cuckoo. A bird we don’t often see. Some nice shots were obtained due to a very light wind and smooth water. “Yellow-billed Cuckoos use wooded habitat with dense cover and water nearby, including woodlands with low, scrubby, vegetation, overgrown orchards, abandoned farmland, and dense thickets along streams and marshes. In the Midwest, look for cuckoos in shrublands of mixed willow and dogwood, and in dense stands of small trees such as American elm. Yellow-billed Cuckoo populations declined by about 52% between 1966 and 2015, according to the North American Breeding Bird Survey”. Ref: Cornell, All About Birds.

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Due to Covid-19 no birding “hot spots” such as Ohio’s Magee Marsh were visited, but even so it’s been a great spring migration.

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Thanks for stopping by.