The rooks are Gothick which have brought to mind

The naturalist Charles Waterton. He wrote

With care and indignation: an explorer:

A solitary who loved, above all creatures,

The birds of the air. When at his burial

A linnet sang out, fact gave rise to legend:

That the flotilla of black barges floating

His body to its lakeside grave had been

Escorted by long flights of birds in mourning.

Among them, rooks. From trees they pinnacle

Like symptoms of a fantasy, their humped

Black shapes unfold now, lifting, taking wing

To drape the sky with signs of lamentation.

No. Waterton – who one phantasmal night

Of gloom and tempest wrote in quietness,

Not fantasy not legend, but ‘the history

Of the rook’ – in the rook saw no gloom, would not

Submit to the ‘blue devils’ conjured up

By the November fogs but would combat them

With ‘weapons of ornithology’.

He had,        

‘Having suffered himself and learned mercy’,

Laid his guns down, walled in his park and lake,

And made a pause in nature.

                                             There he watched,

Rejoicing in cacophony – explored

Downward

                   toward a silence

                                             undisturbed

The barn owl winged its day through,

made a space

Where rooks alighted, their gregarious croak

In tune with an unheard polyphony

His prose, which does not venture to transcribe it,

Bespeaks. Of science and his own estate

He made himself

                             a sanctuary

                                               the mind                

Questing could enter into, haunt in freedom,

And dwell in, freed of its own hauntings.

  Blithe

You must have been, Charles Waterton, to know

That the inequitable penal laws

Enforced by ignorance and sentiment

Against all ‘pests and vermin’, now repealed

By you, no longer warped the needful cycles

Of breeding and predation. Blithe you were

From your high perch to watch the darting turquoise

Spear the still pool, to hear the barn owl screech

No special doom to man, and see the rooks

Fly overhead in the dawn light to pass

Into the still remote, unmediated

Variety of inhuman atmosphere.