April
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When? What? What happens? Where and what to look for
1st Week Blackthorn Flowers This small tree flowers even before it has leaves.
  Ivy Has ripe berries On old walls or growing up the trunks of trees
  Carrion Crow Female sits on nests Look for a tall tree among reasonably open country.  The 'crowsnest' will be right the top and is best seen now before the trees break into leaf
  Ground Ivy Flowers Pretty little blue flowers and ivy-shaped leaves on a low-growing plant
  Adders Become active The males moult to brilliant mating markings, become very active, fast, sexual and bad tempered.  At this time of year adders can normally be found seeking the warming rays of the sun - often on tufts of purple moor grass in boggy areas.   But since they are so bad tempered it may not be such a good idea to seek them out!
  Greenfinches Singing Can be the most common singing birds in gardens.  Greenfinches sing in a tree about 4 meters up; emit a dull boring wheezing sort of song.  Someone should tell them that they can't sing.
  Violets Flower Tiny blue flowers and ground hugging leaves.  Look on sunny banks with very low vegetation
  Daffodils At their best You've just got to stroll along the leat in Chobham!
  Wood ants Rebuild nests The wood ants wake up after Winter and on sunny days will swarm all over the outside of their raised nests.  Under scots pine around the Portobello Fields on Chobham Common is a good place to look.  If you come within 15 cm of them they will spray you with formic acid - not painful unless it gets in your eyes - smells horrible though!
  Peacock and Comma butterflies Defend territory Peacock butterflies that have hibernated over the winter, emerge and can be found aggressively guarding their territories.  Look for a large gaudy (but somewhat worn-looking) butterfly that glides - it has 'eyes' on the top of each wing.

The comma has a strange torn outline.

Both often found on sunny paths - the north common can be quite good on a sunny day.

  Willow warbler Starts tentative song This beautiful slowly falling cascade of song is a true harbinger of spring.  Newly-arrived willow warblers can be heard singing on Chobham Common, usually high up in a birch.  By the third week it becomes the dominant singing bird amongst trees.
2nd week      
  Larch In leaf The larch is one of the few deciduous conifers.
  Rowan In leaf This small tree is sometimes known as the mountain ash
  Blackbirds Sing Lustily!   Up until now the song thrush has probably been the loudest thrush to sing in the garden.  But now the blackbird takes over with its melodious flute-like song.
  Orange-tip, speckled wood and Small Tortoishell butterflies On wing Look for a small white butterfly with distinctive orange tips to its wings.   The small tortoiseshell has zebra stripes at the front of its wings.   The speckled wood has many dots on upper side of wings.
  Stitchwort Start flowering This pretty white flower can be seen often on roadsides and damp woody places.
3rd week     This is your last chance to get out and watch the Spring birds singing before the trees come into leaf and block your view.
  Newts In ponds At this time of year newts can be found in ponds - this is where they breed.
  Chiffchaff Sing The chiffchaff now overwinters in Britain but sings rather late in Chobham.  Its song is 'chiff- chaff' or has been likened to a dripping tap ... drip drop, drip drop, drip drop.....
  Stonechat Courting stonechat.jpg (28927 bytes)Stonechats are probably one of the most common birds on the common.   Look for a small black-capped birds either singing from the top of a bush or chasing their drab brown females amongst the heather.  The call sounds like two pebbles being dashed together
  Willow warbler Singing Is now the most common singing bird around Chobham Common.
  Tadpoles In water You should be able to spot hundreds or tadpoles lazying around in the warmer parts of ponds
  Blackbirds Young fledge The young of the blackbird is one of the first to leave the nest.   The fledglings often sit alone and forelornly in a bush waiting for their parent to return with food.  Youi can often locate them by their plaintive calls.  Don't assume that they are abandoned and capture them - leave them alone; their parents will return if you go away.
  Bluebell Flowers Bluebells can be found in deciduous woods - they dash into flower as soon as it becomes warm and before the trees above them break into leaf and steal their sunlight.  Please don't pick .... leave for all to enjoy
  Lime Starts in leaf The trees along the Chobham leat are limes.  The new leaves are bright lime coloured (of course!)
4th week Great tits Lay eggs Great tits start laying one egg a day for 10 days.  Then when they have the full clutch they sit on them to warm them up so that they all hatch at once.    Watch for activity in any small round hole in a tree (or just put up a nest box).
  Cuckoo Arrives from Africa It is during this week that the cuckoo becomes clearly noticeable by its distinctive call.  But it is rather harder to spot; can be mistaken for a fast flying stripped brown bird of prey
  Swallows Arrive So Summer has arrived?  Often seen around farms and stables.    They fly fast, have long streaming tails and red breasts
  Beech, Oak and lime trees In leaf Now it's going to get more difficult to see birds in the woods
  Tree pipit Start singing These birds can be heard singing high in the sky (lark-like) on open areas of the common.  Between singing they pirch at the top of small trees.
 
© David Stokes. This page last updated: September 20, 2003