Tags » Long-call

Modelling Financial Derivatives in R

Currently, I am working on some code to model financial derivatives like long-call, long-put, short-call or short-put options and their interactions for a given underlying. You find the code on… 13 more words

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Chopping Away The Extras

For some, not all days begin happy. For Ponginae, every day was a dark cloud her eyes would open to. She would wake-up and the first thing she would see were the things that caused her the most misery – her arms. 500 more words

Once Upon A

Pair-bonding behavior between adult Lesser Black-backed Gull and 2nd-calendar year Herring Gull

I came across this peculiar scene today of an adult Lesser Black-backed Gull Larus fuscus and a second-calendar year European Herring Gull Larus argentatus displaying pair-bonding behavior (walking parallel to each other, mew-calling and choking). 192 more words

Herring Gull

Herring Gulls showing pair-bonding behavior

Over the last couple of weeks, I’ve noticed an increase in adult European Herring Gulls (Larus argentatus) in my home town (Leiden, The Netherlands). 117 more words

Lesser Black-backed Gull

Caspian Gull performing long-call in Albatross posture

I love this.

Here’s a short compilation video that I shot today at the Barneveld waste dump, The Netherlands.

It shows a fourth-calendar year Caspian Gull ( 133 more words

Caspian Gull