Copulation with a dead female pilot whale by a captive male pilot whale has been observed, and possible sexual behaviour between two male humpback whales, one dead, has also been reported.In 1983, a male rock dove was observed to be copulating with the corpse of a dove that shortly before had its head crushed by a car. In 2001, a researcher laid out sand martin corpses to attract flocks of other sand martins. In each of six trials, 1–5 individuals from flocks of 50–500 were observed attempting to copulate with the dead sand martins. This occurred one to two months after the breeding season; since copulation outside the breeding season is uncommon among birds, the researcher speculated that the lack of resistance by the corpses stimulated the behaviour. Charles Brown observed at least ten cliff swallows attempt to copulate with a road-killed cliff swallow in the space of 15 minutes. He commented, "This isnt the first time Ive seen cliff swallows do this; the bright orange rump sticking up seems to be all the stimulus these birds need." Necrophilia has also been reported in the European swallow, grey-backed sparrow-lark, Starks lark, and the snow goose. A Norwegian television report showed a male hybrid between a black grouse and western capercaillie kill a male black grouse before attempting to copulate with it. In 2015, due to work done by the University of Washington, it was found that crows would commit necrophilia on dead crow corpses in about 4% of encounters with corpses.
Suberosis is a type of hypersensitivity pneumonitis usually caused by the fungus Penicillium glabrum (formerly called Penicillium frequentans) from exposure to moldy cork dust. Chrysonilia sitophilia, Aspergillus fumigatus, uncontaminated cork dust, and Mucor macedo may also have significant roles in the pathogenesis of the disease. Cause
Cork is often harvested from the cork oak (Quercus suber) and stored in slabs in a hot and humid environment until covered in mold. Cork workers may be exposed to organic dusts in this process, leading to this disease. Diagnosis
Chest radiography, high-resolution chest CT, pulmonary function testing, bronchofibroscopy with BAL and transbronchial biopsy, delayed cutaneous hypersensitivity tests, fungal and suberin antigen testing, immediate hypersensitivity specific skin tests, and specific bronchial challenge tests can all be used for diagnosis. Chest radiography can show fine miliary mottling. Obtaining a history of antigen exposure and asking about symptoms (e.g. dyspnea, cough) can also be useful. Treatment
Avoidance of antigen exposure is beneficial. History
Vinte-e-Um Mendes first reported respiratory disease in Portuguese cork workers in 1947 at the Portuguese Medical Reunion. Cancella dAbreu first described the disease in 1955. See also
Hypersensitivity pneumonitis

References
Further reading
Cancella de Abreu, LC (1955) On a special kind of pneumoconiosis: the suberosis [in Portuguese]. Med Contemp 73,235-243


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