Sunday, 22 June 2014

Orange-tip


The Orange-tip (Arthocharis cardamines) is one of the first butterflies to appear in the spring. Here, in Manorhamilton (Ireland), they're on the wing from April until early June. The male, being territorial, can be seen incessantly fluttering about in search of female and warding off other males. I have even seen them chasing off members of other species, in particular, Small white (Pieris rapae) and Green-veined White (Pieris napi britannica), which, like the Orange tip, are members of the Pieridae family.
The bright orange wing tips, which gives the butterfly its name, probably serves as a display to attract females and as a deterrent to other males.
The female, in contrast, keeps a low profile. Her wing tips are black, instead of orange, and can only be seen flying when feeding or searching for plants to lay her eggs on.
Male Orange-tip. The tips of the female are black. ©Sara Garcia Hipolito 
Both male and female are very flighty and hard to approach, as the slightest movement will set them off. The best time to get close to them is when the weather is not good enough for them to be active. At this time they can be found resting on plants, with a preference for those with light colour flowers. When at rest, the butterfly will keep its wings closed, so only the white and green under-wing is visible. This helps them blend with the environment, while their asymmetrical green pattern helps to break their silhouette, giving the butterfly pretty good camouflage against predators.  
When at rest, only the white and green under-wings are visible. ©Sara Garcia Hipolito
 The two most common plants where you can find their eggs are Ladies' Smock (Cardamine pratensis) and Garlic Mustard (Alliaria petiolata). I have observed a strong preference for Ladie's Smock, except for one site were there was a higher proportion of eggs on Garlic mustard. Several eggs can be seen in a single plant at different stages of maturation. I have often wondered whether they're all laid by the same female or by different. A recent sighting of a female who, after actively searching through a patch of flowers for over five minutes, went off without laying any eggs, leads me to think that they possibly avoid laying their eggs in plants where eggs from other females are already present. This would make sense, as the caterpillars are said to be cannibalistic, so the eggs of any butterfly that are laid in a plant that already has eggs would be doomed, as the caterpillars from the first eggs would hatch sooner and eat the late arrivals.
Despite much searching, I still haven't been able to find any caterpillars, even when I have returned to look in plants where I had found eggs.


Eggs at different stages of development. The orange egg is at a more advanced stage than the yellow ones and will eventually tun brown. ©Sara Garcia Hipolito





Above: Map of local sites where my observations were made. Below: From the chart, it can be seen that the Orange-tip is the 4th most abundant butterfly in the area. Map and Charts by the Irish National Biodiversity Data Centre, using data by Sara Garcia Hipolito.

For more information on the Orange tip butterfly, please visit the Irish Biodiversity Data Centre's page on this species:
 http://records.biodiversityireland.ie/species_in_focus/index.php?sifk=AnthocharisCardamines

Thursday, 12 June 2014

The Cinnabar

The Cinnabar (Tyria jacobaeae) is a colourful day flying moth belonging to the Arctiidae family. It can be found in any grassy habitat where it's larval food plant, Ragwort, available.  Indeed, I have seen it in such diverse habitats as coastal grassland, forests and waste grounds.
Despite it's bright colours it can be hard to spot when hiding amongst the vegetation with it's wings closed, and only becomes conspicuous during in flight when its red underwings are in full display.
The caterpillar, with its yellow and black stripe, is even more conspicuous than the adult and can be found in large numbers devouring Ragwort. Their voracious appetite make them a natural and efficient means to control this plant.


Caterpillars feeding on Ragwort (Jacobaea vulgaris)

Tuesday, 29 April 2014

Dandelion- the wonder food

 Every spring my garden gets covered in a carpet of Dandelions. Being one of the earliest plants to flowers, it attracts a wide variety of butterflies, bees and hover-flies that have just emerged from hibernation and are in much need of a rich source of nectar. 
The seeds of Dandelion also provide food for birds such as finches. In my own garden I've seen Gold finches and Bull finches feasting on this food source.
Below is a selection of photos, that I have taken over the years , showing insects feeding on Dandelions.

Buff-tailed bumblebee

Orange-tip

 
Peacock

Small white
Honey bee

Thursday, 27 June 2013

Happy Goldfinch family

One of the parents with its four chicks

Close up of one of the chicks
Video of one of the chicks being fed by the parent

Saturday, 12 January 2013

Feeding the birds


At this time of the year, when there's not a lot of wild food around, our feathered friends can do with any extra help. Having a variety of foods will ensure to cater for the needs of different types of birds.
Having feeders also offers a great opportunity for bird-watching from the comfort of your own house. It is always quite exciting to see a new species come to your garden, or to see a previously lonesome bird feeding in the company of a potential mate.
Don't forget to have a source of liquid water on frosty days when most water sources might be frozen.

A Greenfinch feasts on peanuts, a great source of fat which is particularly important in the winter. 
One of the Goldfinches is feeding on Niger seeds, a favorite of them, while the other settles for the mixed-seed. The Tit family, such as the Great Tit and Coal Tit in the photo, love sunflower seeds.

A family of Sparrows retreat for a nap after a good feed


This family of Bullfinches came for the remain of the Blackberries. Having plants that produce edible fruits and seeds will also encourage  birds to your garden. 
Initially only one of this Lesser Redpolls  was visiting the feeders, but it was later joined by another one. The two of them are now regulars.

Wednesday, 9 January 2013

First Primroses of 2013

The mild weather we've been having for the last few weeks have brought this Primroses into bloom, but a sudden frost will probably put an end to the emerging flowers. Even if they survive the frost it will be pointless, as far as the plant is concerned, as there is no insects about to pollinate them.
The buds, which just started to open, are covered in frost

Another plant with flowers

As I was walking back along the same road, I spotted two small Dandelions that had joined the Primroses in their futile effort to flower at this time of the year.

Apologies for the bad quality of the photos, but it was getting dark and the flash didn't work well with the flower shots


Friday, 15 June 2012

Garden birds

There's a good assemblage of birds in my garden, some of them with families. Amongst the residents are Great Tits, Dunnocks, Sparrows, Robins, Blackbirds a Wren, and of course, the ubiquitous Jackdaws. On a couple of  occasions I have seen a Blue Tit and also a Bull Finch, which might be residing on the trees nearby. Last Tuesday a flock of about 15 Long-tailed tits stop by for a quick visit as I was refilling the feeders.
House Sparrow (Passer domesticus), male

Juvenile Dunnock (Prunella modularis).
I have seen the parents several times, but this is the first time that I saw their chick.

Family of Great Tits (Parus Major). The chick is the one of the middle.

Great Tit chick being fed by one of the parents