Purple Horror at the Palace

It happens to everyone eventually. Birds are mobile and can move quickly between different areas. This means that they can turn up unexpectedly, which is one of the joys of looking out for them. It also means that they can frustrate, when they disappear as magically as they appeared. Sometimes, they just disappear, despite all your efforts. Last night was a horror show.

Most of the evening was extremely pleasant. Confirmation that there was a juvenile Purple Heron at Blenheim Palace arrived in the morning and I managed to negotiate a couple of free hours in the evening in order to try to see what is a rare bird in Oxfordshire. I arrived before 6pm and was pleased to find two friends, Dave Lowe and Wayne Paes, scanning the lake for the Purple Heron. Wayne had already seen the heron and had watched it fly away from the island, north over Queen’s Pool. All three of us were very confident that the heron would return to roost on the island in the lake before darkness fell.

The light was good, and as time passed, more and more herons and egrets began arriving to roost in the trees on the island. At 18:35 a flock of at least 15 Cattle Egrets flew in (from Otmoor perhaps?) joining a handful of Little Egrets on the island, whilst a Great White Egret fed in the shallows to the north of Queen’s Pool. Grey Herons stalked the shallows, making short flights between feeding areas. We discussed the incredible speed with which Cattle Egrets have become a breeding species in the county. Seeing all three egret species at one site is no longer the remarkable experience that it once was. As the climate warms up, the heat-loving herons and egrets of the Mediterranean find that they can now breed in Oxfordshire.

Gradually the light began to fade. Greenfinches and Starlings joined the heron roost. A Kingfisher zipped past, there was a distant Mandarin Duck, Pied and Grey Wagtails called from above, as they made their way to roost. But no Purple Heron.

By 19:30 it was virtually dark. Puzzled, we wondered if we had somehow missed the Purple Heron as it returned to the island. Or perhaps it had chosen to roost elsewhere? The moon rose behind the floodlit Palace, which was looking pretty special. I took the picture below and then we agreed to call it a day. It had been a pleasant evening, even without the Purple Heron making a reappearance. We parted, Dave and Wayne making their way towards the Palace, where they had parked. I began crossing the bridge to take the public footpath out of the grounds.

Then it happened. Less than two minutes after we separated, I heard shouting from behind me: “TOM, TOM, PURPLE HERON, PURPLE HERON!” I cursed, turned and sprinted back across the bridge. There was more shouting “PURPLE HERON, FLYING RIGHT!”. It was dark, I was running towards the sounds. It seemed to take an age for Dave and Wayne to come into view as I ran up the road towards the Palace, though it was probably less than 10 seconds. I was scanning the sky as I ran, but I could see no birds. Anything below the skyline was pitch black. The Purple Heron had just flown right in front of Dave and Wayne, in front of the stunning backdrop of the Palace and the moon, and had disappeared into the darkness of the Great Lake. I had missed it by less than two minutes.

The overwhelming emotion was frustration. Frustration that a couple of hours of effort could have ended with views of a moonlit Purple Heron flying by in front of Blenheim Palace. Frustration that sometimes in birding, the margins are very small. The choice of a view one way, or a path another way, and you miss the bird. But it happens. I know there will be other Purple Herons, the warming climate will see to that. It is not impossible that within my lifetime Purple Herons will be breeding in Oxfordshire, in the same way that Cattle Egrets have burst upon the scene this year. Still, to see one by moonlight, in front of the Palace… ouch.