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NATURAL HISTORY OBSERVATIONS AT LA CASSINAZZA REPORT 2008 Once
again, winter 2007-08 was relatively mild, with few freezing nights and
almost no snow; it was quickly forgotten and replaced by an early
spring, which was however quite rainy, at least until mid-June. Summer
was unremarkable weather-wise, while the autumn was quite dry, and the
early winter rainy and at times snowy. |
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For
birdwatching, 2008 was a very good year; as always, April was the month
in which the highest number of species was recorded, including some
interesting records and some real surprises. Generally speaking, every
month offered lively and satisfying birdwatching: in my ranking of the
highest day lists, almost half of the top positions, and the number one
spot overall, are occupied by 2008 dates. This is due mostly to a
larger total of resident and regularly occurring species, rather than
to occasional records of rarities. One such example is the Lesser
Spotted Woodpecker, which bred at La Cassinazza for the first time in
2008, and which is being observed with increasing frequency. Other
regular species have become commoner, especially breeding species that
have found new niches in the increasingly mature habitats of La
Cassinazza: in 2008, there was a spectacular increase in the number of
breeding pairs of Black-winged Stilt, while Little Bitterns and
Acrocephalus warblers (Marsh, Reed, and Great Reed) also increased. |
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Red Kites
wintered for the second year in a row, this time with three
individuals, and, somewhat surprisingly, three Spoonbills also
attempted to winter. We were also surprised by some species that had
been abundant the previous winter, and suddenly became scarce: we had
few Woodpigeons in 2008, and Penduline Tits were altogether absent. |
There was
a great variety of butterflies as well: at least 30 species were
recorded this summer, including three new additions to La
Cassinazza’s list: Bath White (Pontia daplidice), Berger’s
Clouded Yellow (Colias alfacariensis) and Small Skipper (Thymelicus
sylvestris). |
On the
other hand, wildflowers were less showy and interesting, due mostly to
weather-related reasons: excessive rainfall in spring ruined or felled
most flowers. The number of plant species, both grasses and shrubs,
identified so far at La Cassinazza has risen to 221, but the list is
far from complete, since it does not include most graminaceous plants,
nor species lacking conspicuous flowers. The lack of rainfall in late
summer and early fall meant that mushrooms had a poor showing, both in
numbers and variety. |
| BIRDS | THE YEAR MONTH-BY-MONTH |